diff --git a/global.d.ts b/global.d.ts
index ee8b054..252587a 100644
--- a/global.d.ts
+++ b/global.d.ts
@@ -42,6 +42,9 @@ declare global {
     | 'angular'
     | 'html'
     | 'vue'
+    | 'css'
+    | 'scss'
+    | 'less'
     | 'oxc'
     | 'oxc-ts'
     | 'astro'
diff --git a/src/core-parts/finder.ts b/src/core-parts/finder.ts
index a7d658b..f92c0e9 100644
--- a/src/core-parts/finder.ts
+++ b/src/core-parts/finder.ts
@@ -1684,6 +1684,62 @@ function handleAstroElement(ctx: CaseHandlerContext) {
   }
 }
 
+function handleCssCssAtrule(ctx: CaseHandlerContext) {
+  ctx.nonCommentNodes.push(ctx.currentASTNode);
+
+  if (
+    isTypeof(
+      ctx.node,
+      z.object({
+        name: z.literal('apply'),
+        nodes: z.undefined(),
+        raws: z.object({
+          afterName: z.string(),
+          params: z.string(),
+        }),
+        source: z.object({
+          start: z.object({
+            line: z.number(),
+          }),
+        }),
+      }),
+    )
+  ) {
+    // Note: In fact, the `@apply` rule is not a `keywordStartingNode`, but it is considered a kind of safe list to maintain the `classNameNode`s obtained from the code inside the rule.
+    ctx.keywordStartingNodes.push(ctx.currentASTNode);
+
+    const offset = '@apply'.length;
+
+    const classNameNodeRangeStart = ctx.currentASTNode.start + offset;
+    const classNameNodeRangeEnd = ctx.currentASTNode.end;
+
+    const nodeStartLineIndex = ctx.node.source.start.line - 1;
+
+    // Note: In fact, since CSS code does not have a delimiter, it might be better to create a new node type. However, if we consider the characters on the left and right of the class name as a delimiter, the formatting method is the same as AttributeNode, so I have processed it as an AttributeNode type for now.
+    ctx.classNameNodes.push({
+      type: 'attribute',
+      isTheFirstLineOnTheSameLineAsTheOpeningTag: true,
+      elementName: '',
+      range: [classNameNodeRangeStart, classNameNodeRangeEnd],
+      startLineIndex: nodeStartLineIndex,
+    });
+  }
+}
+
+function handleCssCssComment(ctx: CaseHandlerContext) {
+  if (
+    isTypeof(
+      ctx.node,
+      z.object({
+        text: z.string(),
+      }),
+    ) &&
+    ctx.node.text.trim() === 'prettier-ignore'
+  ) {
+    ctx.prettierIgnoreNodes.push(ctx.currentASTNode);
+  }
+}
+
 function handleAstroFrontmatter(ctx: CaseHandlerContext) {
   ctx.nonCommentNodes.push(ctx.currentASTNode);
 
@@ -1747,6 +1803,11 @@ const typescriptCaseHandlers: CaseHandlers = {
   Line: handleTypeScriptBlock,
 };
 
+const cssCaseHandlers: CaseHandlers = {
+  'css-atrule': handleCssCssAtrule,
+  'css-comment': handleCssCssComment,
+};
+
 const parserCaseHandlers: ParserCaseHandlers = {
   babel: {
     ...babelCaseHandlers,
@@ -1800,6 +1861,15 @@ const parserCaseHandlers: ParserCaseHandlers = {
     element: handleAngularElement,
     comment: handleHtmlComment,
   },
+  css: {
+    ...cssCaseHandlers,
+  },
+  scss: {
+    ...cssCaseHandlers,
+  },
+  less: {
+    ...cssCaseHandlers,
+  },
   astro: {
     frontmatter: handleAstroFrontmatter,
     attribute: handleAstroAttribute,
@@ -2190,6 +2260,121 @@ export function findTargetClassNameNodesBasedOnHtml(
   );
 }
 
+export function findTargetClassNameNodesBasedOnCss(
+  formattedText: string,
+  ast: AST,
+  options: ResolvedOptions,
+): ClassNameNode[] {
+  const supportedAttributes: string[] = ['class', 'className', ...options.customAttributes];
+  const supportedFunctions: string[] = ['classNames', ...options.customFunctions];
+  /**
+   * Most nodes
+   */
+  const nonCommentNodes: ASTNode[] = [];
+  /**
+   * Nodes with a valid 'prettier-ignore' syntax
+   */
+  const prettierIgnoreNodes: ASTNode[] = [];
+  /**
+   * Nodes starting with supported attribute names or supported function names
+   */
+  const keywordStartingNodes: ASTNode[] = [];
+  /**
+   * Class names enclosed in delimiters
+   */
+  const classNameNodes: ClassNameNode[] = [];
+
+  function recursion(node: unknown, parentNode?: { type: string }): void {
+    if (!isTypeof(node, z.object({ type: z.string() }))) {
+      return;
+    }
+
+    let recursiveProps: string[] = [];
+
+    switch (node.type) {
+      case 'css-atrule':
+      case 'css-root':
+      case 'css-rule': {
+        recursiveProps = ['nodes'];
+        break;
+      }
+      default: {
+        break;
+      }
+    }
+
+    Object.entries(node).forEach(([key, value]) => {
+      if (!recursiveProps.includes(key)) {
+        return;
+      }
+
+      if (Array.isArray(value)) {
+        value.forEach((childNode: unknown) => {
+          recursion(childNode, node);
+        });
+        return;
+      }
+
+      recursion(value, node);
+    });
+
+    if (
+      !isTypeof(
+        node,
+        z.object({
+          source: z.object({
+            startOffset: z.number(),
+            endOffset: z.number(),
+          }),
+        }),
+      )
+    ) {
+      return;
+    }
+
+    const nodeType = node.type;
+    const currentNodeRangeStart = node.source.startOffset;
+    const currentNodeRangeEnd = node.source.endOffset;
+
+    const currentASTNode: ASTNode = {
+      type: nodeType,
+      start: currentNodeRangeStart,
+      end: currentNodeRangeEnd,
+    };
+
+    const handler = parserCaseHandlers[String(options.parser)]?.[nodeType];
+
+    if (handler) {
+      const context: CaseHandlerContext = {
+        formattedText,
+        options,
+        supportedAttributes,
+        supportedFunctions,
+        nonCommentNodes,
+        prettierIgnoreNodes,
+        keywordStartingNodes,
+        classNameNodes,
+        node,
+        parentNode,
+        currentASTNode,
+      };
+
+      handler(context);
+    } else {
+      nonCommentNodes.push(currentASTNode);
+    }
+  }
+
+  recursion(ast);
+
+  return filterAndSortClassNameNodes(
+    nonCommentNodes,
+    prettierIgnoreNodes,
+    keywordStartingNodes,
+    classNameNodes,
+  );
+}
+
 export function findTargetClassNameNodesBasedOnAstro(
   formattedText: string,
   ast: AST,
diff --git a/src/core-parts/processor.ts b/src/core-parts/processor.ts
index 73e9c46..a175a7d 100644
--- a/src/core-parts/processor.ts
+++ b/src/core-parts/processor.ts
@@ -4,6 +4,7 @@ import type { AST } from 'prettier';
 import {
   findTargetClassNameNodesBasedOnJavaScript,
   findTargetClassNameNodesBasedOnHtml,
+  findTargetClassNameNodesBasedOnCss,
   findTargetClassNameNodesBasedOnAstro,
 } from './finder';
 import {
@@ -645,6 +646,12 @@ export async function parseLineByLineAndReplaceAsync({
       targetClassNameNodes = findTargetClassNameNodesBasedOnHtml(formattedText, ast, options);
       break;
     }
+    case 'css':
+    case 'scss':
+    case 'less': {
+      targetClassNameNodes = findTargetClassNameNodesBasedOnCss(formattedText, ast, options);
+      break;
+    }
     case 'astro': {
       targetClassNameNodes = findTargetClassNameNodesBasedOnAstro(formattedText, ast, options);
       break;
diff --git a/src/parsers.ts b/src/parsers.ts
index abbaf76..f36a369 100644
--- a/src/parsers.ts
+++ b/src/parsers.ts
@@ -2,6 +2,7 @@ import type { Parser, Plugin } from 'prettier';
 import { format } from 'prettier';
 import { parsers as babelParsers } from 'prettier/plugins/babel';
 import { parsers as htmlParsers } from 'prettier/plugins/html';
+import { parsers as postcssParsers } from 'prettier/plugins/postcss';
 import { parsers as typescriptParsers } from 'prettier/plugins/typescript';
 
 import { advancedParse } from './core-parts/parser';
@@ -34,6 +35,7 @@ function transformParser(
     ...(refinedParser ?? {}),
     // @ts-expect-error
     parse: async (text: string, options: ResolvedOptions): Promise<FormattedTextAST> => {
+      // NOTE: This statement is deprecated and will be removed in version 0.12.0. There are still no plans to support the `markdown` and `mdx` parsers. I just thought it would be better to guide users to override Prettier's configuration rather than branching inside this plugin.
       if (options.parentParser === 'markdown' || options.parentParser === 'mdx') {
         let codeblockStart = '```';
         const codeblockEnd = '```';
@@ -187,6 +189,15 @@ export const parsers: { [parserName: string]: Parser } = {
   vue: transformParser('vue', {
     defaultParser: htmlParsers.vue,
   }),
+  css: transformParser('css', {
+    defaultParser: postcssParsers.css,
+  }),
+  scss: transformParser('scss', {
+    defaultParser: postcssParsers.scss,
+  }),
+  less: transformParser('less', {
+    defaultParser: postcssParsers.less,
+  }),
   oxc: transformParser('oxc', {
     defaultParser: null,
     externalPluginName: '@prettier/plugin-oxc',
diff --git a/tests/css/at-rule/__snapshots__/absolute.test.ts.snap b/tests/css/at-rule/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..50e3d3e
--- /dev/null
+++ b/tests/css/at-rule/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,283 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'@color-profile' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@container' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@counter-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-face' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-feature-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-palette-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@keyframes' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@layer' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@media' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@page' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@position-try' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@property' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@scope' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@starting-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@view-transition' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/at-rule/__snapshots__/relative.test.ts.snap b/tests/css/at-rule/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..95ad088
--- /dev/null
+++ b/tests/css/at-rule/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,283 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'@color-profile' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@container' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@counter-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-face' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-feature-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-palette-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@keyframes' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@layer' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@media' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@page' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@position-try' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@property' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@scope' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@starting-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@view-transition' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/at-rule/absolute.test.ts b/tests/css/at-rule/absolute.test.ts
new file mode 100644
index 0000000..0ff8229
--- /dev/null
+++ b/tests/css/at-rule/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/at-rule/fixtures.ts b/tests/css/at-rule/fixtures.ts
new file mode 100644
index 0000000..2b1db16
--- /dev/null
+++ b/tests/css/at-rule/fixtures.ts
@@ -0,0 +1,262 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '@color-profile',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@container',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@counter-style',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-face',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-feature-values',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-palette-values',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@keyframes',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@layer',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@media',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@page',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@position-try',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@property',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@scope',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@starting-style',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@view-transition',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/css/at-rule/relative.test.ts b/tests/css/at-rule/relative.test.ts
new file mode 100644
index 0000000..cd39bdf
--- /dev/null
+++ b/tests/css/at-rule/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/combinator/__snapshots__/absolute.test.ts.snap b/tests/css/combinator/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..3844a9d
--- /dev/null
+++ b/tests/css/combinator/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,47 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'child combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'descendant combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'next-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'subsequent-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/combinator/__snapshots__/relative.test.ts.snap b/tests/css/combinator/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..feea6dc
--- /dev/null
+++ b/tests/css/combinator/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,47 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'child combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'descendant combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'next-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'subsequent-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/combinator/absolute.test.ts b/tests/css/combinator/absolute.test.ts
new file mode 100644
index 0000000..0ff8229
--- /dev/null
+++ b/tests/css/combinator/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/combinator/fixtures.ts b/tests/css/combinator/fixtures.ts
new file mode 100644
index 0000000..731a5a0
--- /dev/null
+++ b/tests/css/combinator/fixtures.ts
@@ -0,0 +1,48 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'child combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'descendant combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'next-sibling combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'subsequent-sibling combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/css/combinator/relative.test.ts b/tests/css/combinator/relative.test.ts
new file mode 100644
index 0000000..cd39bdf
--- /dev/null
+++ b/tests/css/combinator/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/others/__snapshots__/absolute.test.ts.snap b/tests/css/others/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..27f720e
--- /dev/null
+++ b/tests/css/others/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,57 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'endOfLine: crlf' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur
+        adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'tabWidth: 4' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+        elit proin ex massa hendrerit eu posuere;
+    & > a {
+        @apply lorem ipsum dolor sit amet consectetur
+            adipiscing elit proin ex massa hendrerit eu
+            posuere;
+        &:hover,
+        &:focus {
+            @apply lorem ipsum dolor sit amet consectetur
+                adipiscing elit proin ex massa hendrerit eu
+                posuere;
+        }
+    }
+}
+"
+`;
+
+exports[`'useTabs: true' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+	@apply lorem ipsum dolor sit amet consectetur adipiscing
+		elit proin ex massa hendrerit eu posuere;
+	& > a {
+		@apply lorem ipsum dolor sit amet consectetur adipiscing
+			elit proin ex massa hendrerit eu posuere;
+		&:hover,
+		&:focus {
+			@apply lorem ipsum dolor sit amet consectetur
+				adipiscing elit proin ex massa hendrerit eu posuere;
+		}
+	}
+}
+"
+`;
diff --git a/tests/css/others/__snapshots__/relative.test.ts.snap b/tests/css/others/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..713fdd1
--- /dev/null
+++ b/tests/css/others/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,55 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'endOfLine: crlf' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'tabWidth: 4' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    & > a {
+        @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+            ex massa hendrerit eu posuere;
+        &:hover,
+        &:focus {
+            @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+                ex massa hendrerit eu posuere;
+        }
+    }
+}
+"
+`;
+
+exports[`'useTabs: true' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+	@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+		ex massa hendrerit eu posuere;
+	& > a {
+		@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+			ex massa hendrerit eu posuere;
+		&:hover,
+		&:focus {
+			@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+				ex massa hendrerit eu posuere;
+		}
+	}
+}
+"
+`;
diff --git a/tests/css/others/absolute.test.ts b/tests/css/others/absolute.test.ts
new file mode 100644
index 0000000..0ff8229
--- /dev/null
+++ b/tests/css/others/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/others/fixtures.ts b/tests/css/others/fixtures.ts
new file mode 100644
index 0000000..824abde
--- /dev/null
+++ b/tests/css/others/fixtures.ts
@@ -0,0 +1,61 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'tabWidth: 4',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      tabWidth: 4,
+    },
+  },
+  {
+    name: 'useTabs: true',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      useTabs: true,
+    },
+  },
+  {
+    name: 'endOfLine: crlf',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      endOfLine: 'crlf',
+    },
+  },
+];
diff --git a/tests/css/others/relative.test.ts b/tests/css/others/relative.test.ts
new file mode 100644
index 0000000..cd39bdf
--- /dev/null
+++ b/tests/css/others/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/prettier-ignore/__snapshots__/absolute.test.ts.snap b/tests/css/prettier-ignore/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..d4071df
--- /dev/null
+++ b/tests/css/prettier-ignore/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,42 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'comments that contain the phrase \`pre…' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'ignore comment (1)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+"
+`;
+
+exports[`'ignore comment (2)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/css/prettier-ignore/__snapshots__/relative.test.ts.snap b/tests/css/prettier-ignore/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..9d487a2
--- /dev/null
+++ b/tests/css/prettier-ignore/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,42 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'comments that contain the phrase \`pre…' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'ignore comment (1)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+"
+`;
+
+exports[`'ignore comment (2)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/css/prettier-ignore/absolute.test.ts b/tests/css/prettier-ignore/absolute.test.ts
new file mode 100644
index 0000000..0ff8229
--- /dev/null
+++ b/tests/css/prettier-ignore/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/prettier-ignore/fixtures.ts b/tests/css/prettier-ignore/fixtures.ts
new file mode 100644
index 0000000..d78daa6
--- /dev/null
+++ b/tests/css/prettier-ignore/fixtures.ts
@@ -0,0 +1,36 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'ignore comment (1)',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+`,
+  },
+  {
+    name: 'ignore comment (2)',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  to { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+}
+`,
+  },
+  {
+    name: 'comments that contain the phrase `prettier-ignore` but do not prevent formatting',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1, h2, h3, h4, h5, h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/css/prettier-ignore/relative.test.ts b/tests/css/prettier-ignore/relative.test.ts
new file mode 100644
index 0000000..cd39bdf
--- /dev/null
+++ b/tests/css/prettier-ignore/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/pseudo-class/__snapshots__/absolute.test.ts.snap b/tests/css/pseudo-class/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..7fc20a4
--- /dev/null
+++ b/tests/css/pseudo-class/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,178 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`':active' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':checked' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':disabled' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':first-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':focus' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':has()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':hover' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':last-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':not()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':root' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/pseudo-class/__snapshots__/relative.test.ts.snap b/tests/css/pseudo-class/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..c3121f6
--- /dev/null
+++ b/tests/css/pseudo-class/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,178 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`':active' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':checked' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':disabled' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':first-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':focus' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':has()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':hover' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':last-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':not()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':root' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/pseudo-class/absolute.test.ts b/tests/css/pseudo-class/absolute.test.ts
new file mode 100644
index 0000000..0ff8229
--- /dev/null
+++ b/tests/css/pseudo-class/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/pseudo-class/fixtures.ts b/tests/css/pseudo-class/fixtures.ts
new file mode 100644
index 0000000..47b1f7c
--- /dev/null
+++ b/tests/css/pseudo-class/fixtures.ts
@@ -0,0 +1,166 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: ':active',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':checked',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':disabled',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':first-of-type',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':focus',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':has()',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':hover',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':last-of-type',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':not()',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':root',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/css/pseudo-class/relative.test.ts b/tests/css/pseudo-class/relative.test.ts
new file mode 100644
index 0000000..cd39bdf
--- /dev/null
+++ b/tests/css/pseudo-class/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/pseudo-element/__snapshots__/absolute.test.ts.snap b/tests/css/pseudo-element/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..aa110a9
--- /dev/null
+++ b/tests/css/pseudo-element/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,77 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'::after' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::before' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::first-letter' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::marker' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::placeholder' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::selection' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/pseudo-element/__snapshots__/relative.test.ts.snap b/tests/css/pseudo-element/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..20967e7
--- /dev/null
+++ b/tests/css/pseudo-element/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,77 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'::after' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::before' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::first-letter' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::marker' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::placeholder' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::selection' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/pseudo-element/absolute.test.ts b/tests/css/pseudo-element/absolute.test.ts
new file mode 100644
index 0000000..0ff8229
--- /dev/null
+++ b/tests/css/pseudo-element/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/pseudo-element/fixtures.ts b/tests/css/pseudo-element/fixtures.ts
new file mode 100644
index 0000000..4ae1782
--- /dev/null
+++ b/tests/css/pseudo-element/fixtures.ts
@@ -0,0 +1,76 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '::after',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::before',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::first-letter',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::marker',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::placeholder',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::selection',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/css/pseudo-element/relative.test.ts b/tests/css/pseudo-element/relative.test.ts
new file mode 100644
index 0000000..cd39bdf
--- /dev/null
+++ b/tests/css/pseudo-element/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/selector/__snapshots__/absolute.test.ts.snap b/tests/css/selector/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..3a52635
--- /dev/null
+++ b/tests/css/selector/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,206 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'& nesting selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur
+        adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'attribute selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'class selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'id selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'keyframe selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'namespace separator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'selector list' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'type selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'universal selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/selector/__snapshots__/relative.test.ts.snap b/tests/css/selector/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..51a7817
--- /dev/null
+++ b/tests/css/selector/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,206 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'& nesting selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'attribute selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'class selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'id selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'keyframe selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'namespace separator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'selector list' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'type selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'universal selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/css/selector/absolute.test.ts b/tests/css/selector/absolute.test.ts
new file mode 100644
index 0000000..0ff8229
--- /dev/null
+++ b/tests/css/selector/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/css/selector/fixtures.ts b/tests/css/selector/fixtures.ts
new file mode 100644
index 0000000..4d47374
--- /dev/null
+++ b/tests/css/selector/fixtures.ts
@@ -0,0 +1,183 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '& nesting selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+  },
+  {
+    name: 'attribute selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'class selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'id selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'keyframe selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'namespace separator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'selector list',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1, h2, h3, h4, h5, h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'type selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'universal selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/css/selector/relative.test.ts b/tests/css/selector/relative.test.ts
new file mode 100644
index 0000000..cd39bdf
--- /dev/null
+++ b/tests/css/selector/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'css',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/at-rule/__snapshots__/absolute.test.ts.snap b/tests/less/at-rule/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..50e3d3e
--- /dev/null
+++ b/tests/less/at-rule/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,283 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'@color-profile' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@container' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@counter-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-face' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-feature-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-palette-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@keyframes' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@layer' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@media' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@page' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@position-try' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@property' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@scope' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@starting-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@view-transition' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/at-rule/__snapshots__/relative.test.ts.snap b/tests/less/at-rule/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..95ad088
--- /dev/null
+++ b/tests/less/at-rule/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,283 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'@color-profile' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@container' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@counter-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-face' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-feature-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-palette-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@keyframes' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@layer' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@media' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@page' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@position-try' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@property' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@scope' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@starting-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@view-transition' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/at-rule/absolute.test.ts b/tests/less/at-rule/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/at-rule/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/at-rule/fixtures.ts b/tests/less/at-rule/fixtures.ts
new file mode 100644
index 0000000..2b1db16
--- /dev/null
+++ b/tests/less/at-rule/fixtures.ts
@@ -0,0 +1,262 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '@color-profile',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@container',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@counter-style',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-face',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-feature-values',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-palette-values',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@keyframes',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@layer',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@media',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@page',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@position-try',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@property',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@scope',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@starting-style',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@view-transition',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/less/at-rule/relative.test.ts b/tests/less/at-rule/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/at-rule/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/combinator/__snapshots__/absolute.test.ts.snap b/tests/less/combinator/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..3844a9d
--- /dev/null
+++ b/tests/less/combinator/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,47 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'child combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'descendant combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'next-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'subsequent-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/combinator/__snapshots__/relative.test.ts.snap b/tests/less/combinator/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..feea6dc
--- /dev/null
+++ b/tests/less/combinator/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,47 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'child combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'descendant combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'next-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'subsequent-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/combinator/absolute.test.ts b/tests/less/combinator/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/combinator/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/combinator/fixtures.ts b/tests/less/combinator/fixtures.ts
new file mode 100644
index 0000000..731a5a0
--- /dev/null
+++ b/tests/less/combinator/fixtures.ts
@@ -0,0 +1,48 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'child combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'descendant combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'next-sibling combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'subsequent-sibling combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/less/combinator/relative.test.ts b/tests/less/combinator/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/combinator/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/css-guard/__snapshots__/absolute.test.ts.snap b/tests/less/css-guard/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..2026ddd
--- /dev/null
+++ b/tests/less/css-guard/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,21 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+button when (@my-option = true) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+& when (@my-option = true) {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/css-guard/__snapshots__/relative.test.ts.snap b/tests/less/css-guard/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..9db035d
--- /dev/null
+++ b/tests/less/css-guard/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,21 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+button when (@my-option = true) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+& when (@my-option = true) {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/css-guard/absolute.test.ts b/tests/less/css-guard/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/css-guard/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/css-guard/fixtures.ts b/tests/less/css-guard/fixtures.ts
new file mode 100644
index 0000000..50483b2
--- /dev/null
+++ b/tests/less/css-guard/fixtures.ts
@@ -0,0 +1,22 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+button when (@my-option = true) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+& when (@my-option = true) {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+];
diff --git a/tests/less/css-guard/relative.test.ts b/tests/less/css-guard/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/css-guard/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/detached-ruleset/__snapshots__/absolute.test.ts.snap b/tests/less/detached-ruleset/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..303390c
--- /dev/null
+++ b/tests/less/detached-ruleset/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,55 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+// declare detached ruleset
+@detached-ruleset: {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}; // semi-colon is optional in 3.5.0+
+
+// use detached ruleset
+.top {
+  @detached-ruleset();
+}
+"
+`;
+
+exports[`'property / variable accessors' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@config: {
+  option1: true;
+  option2: false;
+};
+
+.mixin() when (@config[option1] = true) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.box {
+  .mixin();
+}
+"
+`;
+
+exports[`'scoping' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@detached-ruleset: {
+  caller-variable: @caller-variable; // variable is undefined here
+  .caller-mixin(); // mixin is undefined here
+};
+
+selector {
+  // use detached ruleset
+  @detached-ruleset();
+
+  // define variable and mixin needed inside the detached ruleset
+  @caller-variable: value;
+  .caller-mixin() {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/detached-ruleset/__snapshots__/relative.test.ts.snap b/tests/less/detached-ruleset/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..7574ac8
--- /dev/null
+++ b/tests/less/detached-ruleset/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,55 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+// declare detached ruleset
+@detached-ruleset: {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}; // semi-colon is optional in 3.5.0+
+
+// use detached ruleset
+.top {
+  @detached-ruleset();
+}
+"
+`;
+
+exports[`'property / variable accessors' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@config: {
+  option1: true;
+  option2: false;
+};
+
+.mixin() when (@config[option1] = true) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.box {
+  .mixin();
+}
+"
+`;
+
+exports[`'scoping' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@detached-ruleset: {
+  caller-variable: @caller-variable; // variable is undefined here
+  .caller-mixin(); // mixin is undefined here
+};
+
+selector {
+  // use detached ruleset
+  @detached-ruleset();
+
+  // define variable and mixin needed inside the detached ruleset
+  @caller-variable: value;
+  .caller-mixin() {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/detached-ruleset/absolute.test.ts b/tests/less/detached-ruleset/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/detached-ruleset/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/detached-ruleset/fixtures.ts b/tests/less/detached-ruleset/fixtures.ts
new file mode 100644
index 0000000..298a5b2
--- /dev/null
+++ b/tests/less/detached-ruleset/fixtures.ts
@@ -0,0 +1,56 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+// declare detached ruleset
+@detached-ruleset: { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }; // semi-colon is optional in 3.5.0+
+
+// use detached ruleset
+.top {
+    @detached-ruleset();
+}
+`,
+  },
+  {
+    name: 'scoping',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@detached-ruleset: {
+  caller-variable: @caller-variable; // variable is undefined here
+  .caller-mixin(); // mixin is undefined here
+};
+
+selector {
+  // use detached ruleset
+  @detached-ruleset();
+
+  // define variable and mixin needed inside the detached ruleset
+  @caller-variable: value;
+  .caller-mixin() {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'property / variable accessors',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@config: {
+  option1: true;
+  option2: false;
+}
+
+.mixin() when (@config[option1] = true) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.box {
+  .mixin();
+}
+`,
+  },
+];
diff --git a/tests/less/detached-ruleset/relative.test.ts b/tests/less/detached-ruleset/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/detached-ruleset/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/extend/__snapshots__/absolute.test.ts.snap b/tests/less/extend/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..4ea065f
--- /dev/null
+++ b/tests/less/extend/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,154 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'duplication detection' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.alert-info,
+.widget {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.alert:extend(.alert-info, .widget) {
+}
+"
+`;
+
+exports[`'exact matching with extend' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a.class,
+.class.a,
+.class > .a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.test:extend(.class) {
+} // this will NOT match the any selectors above
+"
+`;
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav ul {
+  &:extend(.inline);
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.inline {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'extend "all"' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a.b.test,
+.test.c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.test {
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+.replacement:extend(.test all) {
+}
+"
+`;
+
+exports[`'extend attached to selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.big-division,
+.big-bag:extend(.bag),
+.big-bucket:extend(.bucket) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'extending nested selectors' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.bucket {
+  tr {
+    // nested ruleset with target selector
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+.some-class:extend(.bucket tr) {
+} // nested ruleset is recognized
+"
+`;
+
+exports[`'nth expression' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:nth-child(1n + 3) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.child:extend(:nth-child(n + 3)) {
+}
+
+[title="identifier"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+[title="identifier"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+[title="identifier"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.noQuote:extend([title="identifier"]) {
+}
+.singleQuote:extend([title="identifier"]) {
+}
+.doubleQuote:extend([title="identifier"]) {
+}
+"
+`;
+
+exports[`'scoping / extend inside @media' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  .screenClass:extend(.selector) {
+  } // extend inside media
+  .selector {
+    // this will be matched - it is in the same media
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+.selector {
+  // ruleset on top of style sheet - extend ignores it
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+@media screen {
+  .selector {
+    // ruleset inside another media - extend ignores it
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'selector interpolation with extend' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.bucket {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+@{variable}:extend(.bucket) {
+}
+@variable: .selector;
+"
+`;
diff --git a/tests/less/extend/__snapshots__/relative.test.ts.snap b/tests/less/extend/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..eafae48
--- /dev/null
+++ b/tests/less/extend/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,154 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'duplication detection' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.alert-info,
+.widget {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.alert:extend(.alert-info, .widget) {
+}
+"
+`;
+
+exports[`'exact matching with extend' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a.class,
+.class.a,
+.class > .a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.test:extend(.class) {
+} // this will NOT match the any selectors above
+"
+`;
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav ul {
+  &:extend(.inline);
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.inline {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'extend "all"' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a.b.test,
+.test.c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.test {
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+.replacement:extend(.test all) {
+}
+"
+`;
+
+exports[`'extend attached to selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.big-division,
+.big-bag:extend(.bag),
+.big-bucket:extend(.bucket) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'extending nested selectors' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.bucket {
+  tr {
+    // nested ruleset with target selector
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+.some-class:extend(.bucket tr) {
+} // nested ruleset is recognized
+"
+`;
+
+exports[`'nth expression' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:nth-child(1n + 3) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.child:extend(:nth-child(n + 3)) {
+}
+
+[title="identifier"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+[title="identifier"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+[title="identifier"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.noQuote:extend([title="identifier"]) {
+}
+.singleQuote:extend([title="identifier"]) {
+}
+.doubleQuote:extend([title="identifier"]) {
+}
+"
+`;
+
+exports[`'scoping / extend inside @media' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  .screenClass:extend(.selector) {
+  } // extend inside media
+  .selector {
+    // this will be matched - it is in the same media
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+.selector {
+  // ruleset on top of style sheet - extend ignores it
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+@media screen {
+  .selector {
+    // ruleset inside another media - extend ignores it
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'selector interpolation with extend' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.bucket {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+@{variable}:extend(.bucket) {
+}
+@variable: .selector;
+"
+`;
diff --git a/tests/less/extend/absolute.test.ts b/tests/less/extend/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/extend/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/extend/fixtures.ts b/tests/less/extend/fixtures.ts
new file mode 100644
index 0000000..f312205
--- /dev/null
+++ b/tests/less/extend/fixtures.ts
@@ -0,0 +1,136 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav ul {
+  &:extend(.inline);
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.inline {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'extend attached to selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.big-division,
+.big-bag:extend(.bag),
+.big-bucket:extend(.bucket) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'extending nested selectors',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.bucket {
+  tr { // nested ruleset with target selector
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+.some-class:extend(.bucket tr) {} // nested ruleset is recognized
+`,
+  },
+  {
+    name: 'exact matching with extend',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a.class,
+.class.a,
+.class > .a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.test:extend(.class) {} // this will NOT match the any selectors above
+`,
+  },
+  {
+    name: 'nth expression',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:nth-child(1n+3) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.child:extend(:nth-child(n+3)) {}
+
+[title=identifier] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+[title='identifier'] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+[title="identifier"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.noQuote:extend([title=identifier]) {}
+.singleQuote:extend([title='identifier']) {}
+.doubleQuote:extend([title="identifier"]) {}
+`,
+  },
+  {
+    name: 'extend "all"',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a.b.test,
+.test.c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.test {
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+.replacement:extend(.test all) {}
+`,
+  },
+  {
+    name: 'selector interpolation with extend',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.bucket {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+@{variable}:extend(.bucket) {}
+@variable: .selector;
+`,
+  },
+  {
+    name: 'scoping / extend inside @media',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  .screenClass:extend(.selector) {} // extend inside media
+  .selector { // this will be matched - it is in the same media
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+.selector { // ruleset on top of style sheet - extend ignores it
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+@media screen {
+  .selector {  // ruleset inside another media - extend ignores it
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'duplication detection',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.alert-info,
+.widget {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.alert:extend(.alert-info, .widget) {}
+`,
+  },
+];
diff --git a/tests/less/extend/relative.test.ts b/tests/less/extend/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/extend/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/map/__snapshots__/absolute.test.ts.snap b/tests/less/map/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..8b96be3
--- /dev/null
+++ b/tests/less/map/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,21 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@sizes: {
+  mobile: 320px;
+  tablet: 768px;
+  desktop: 1024px;
+};
+
+.navbar {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+
+  @media (min-width: @sizes[tablet]) {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/map/__snapshots__/relative.test.ts.snap b/tests/less/map/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..ab94215
--- /dev/null
+++ b/tests/less/map/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,21 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@sizes: {
+  mobile: 320px;
+  tablet: 768px;
+  desktop: 1024px;
+};
+
+.navbar {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+
+  @media (min-width: @sizes[tablet]) {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/map/absolute.test.ts b/tests/less/map/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/map/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/map/fixtures.ts b/tests/less/map/fixtures.ts
new file mode 100644
index 0000000..24c4989
--- /dev/null
+++ b/tests/less/map/fixtures.ts
@@ -0,0 +1,23 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@sizes: {
+  mobile: 320px;
+  tablet: 768px;
+  desktop: 1024px;
+}
+
+.navbar {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+
+  @media (min-width: @sizes[tablet]) {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+];
diff --git a/tests/less/map/relative.test.ts b/tests/less/map/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/map/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/mixin/__snapshots__/absolute.test.ts.snap b/tests/less/mixin/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..f6cb29c
--- /dev/null
+++ b/tests/less/mixin/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,121 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a,
+#b {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.mixin-class {
+  .a();
+}
+.mixin-id {
+  #b();
+}
+"
+`;
+
+exports[`'guarded namespaces' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#namespace when (@mode = huge) {
+  .mixin() {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+#namespace {
+  .mixin() when (@mode = huge) {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+#sp_1 when (default()) {
+  #sp_2 when (default()) {
+    .mixin() when not(default()) {
+      @apply lorem ipsum dolor sit amet consectetur
+        adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'mixin guards' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.mixin(@a) when (lightness(@a) >= 50%) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.mixin(@a) when (lightness(@a) < 50%) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.mixin(@a) {
+  color: @a;
+}
+"
+`;
+
+exports[`'mixins with parentheses' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.my-mixin {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.my-other-mixin() {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.class {
+  .my-mixin();
+  .my-other-mixin();
+}
+"
+`;
+
+exports[`'namespaces' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#my-library {
+  .my-mixin() {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+// which can be used like this
+.class {
+  #my-library.my-mixin();
+}
+"
+`;
+
+exports[`'pattern-matching' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.mixin(dark, @color) {
+  color: darken(@color, 10%);
+}
+.mixin(light, @color) {
+  color: lighten(@color, 10%);
+}
+.mixin(@_, @color) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'selectors in mixins' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.my-hover-mixin() {
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+button {
+  .my-hover-mixin();
+}
+"
+`;
diff --git a/tests/less/mixin/__snapshots__/relative.test.ts.snap b/tests/less/mixin/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..128c0aa
--- /dev/null
+++ b/tests/less/mixin/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,121 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a,
+#b {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.mixin-class {
+  .a();
+}
+.mixin-id {
+  #b();
+}
+"
+`;
+
+exports[`'guarded namespaces' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#namespace when (@mode = huge) {
+  .mixin() {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+#namespace {
+  .mixin() when (@mode = huge) {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+#sp_1 when (default()) {
+  #sp_2 when (default()) {
+    .mixin() when not(default()) {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'mixin guards' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.mixin(@a) when (lightness(@a) >= 50%) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.mixin(@a) when (lightness(@a) < 50%) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.mixin(@a) {
+  color: @a;
+}
+"
+`;
+
+exports[`'mixins with parentheses' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.my-mixin {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.my-other-mixin() {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.class {
+  .my-mixin();
+  .my-other-mixin();
+}
+"
+`;
+
+exports[`'namespaces' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#my-library {
+  .my-mixin() {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+// which can be used like this
+.class {
+  #my-library.my-mixin();
+}
+"
+`;
+
+exports[`'pattern-matching' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.mixin(dark, @color) {
+  color: darken(@color, 10%);
+}
+.mixin(light, @color) {
+  color: lighten(@color, 10%);
+}
+.mixin(@_, @color) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'selectors in mixins' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.my-hover-mixin() {
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+button {
+  .my-hover-mixin();
+}
+"
+`;
diff --git a/tests/less/mixin/absolute.test.ts b/tests/less/mixin/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/mixin/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/mixin/fixtures.ts b/tests/less/mixin/fixtures.ts
new file mode 100644
index 0000000..75cfffe
--- /dev/null
+++ b/tests/less/mixin/fixtures.ts
@@ -0,0 +1,113 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.a, #b {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.mixin-class {
+  .a();
+}
+.mixin-id {
+  #b();
+}
+`,
+  },
+  {
+    name: 'mixins with parentheses',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.my-mixin {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.my-other-mixin() {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.class {
+  .my-mixin();
+  .my-other-mixin();
+}
+`,
+  },
+  {
+    name: 'selectors in mixins',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.my-hover-mixin() {
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+button {
+  .my-hover-mixin();
+}
+`,
+  },
+  {
+    name: 'namespaces',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#my-library {
+  .my-mixin() {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+// which can be used like this
+.class {
+  #my-library.my-mixin();
+}
+`,
+  },
+  {
+    name: 'guarded namespaces',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#namespace when (@mode = huge) {
+  .mixin() { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+}
+
+#namespace {
+  .mixin() when (@mode = huge) { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+}
+
+#sp_1 when (default()) {
+  #sp_2 when (default()) {
+    .mixin() when not(default()) { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  }
+}
+`,
+  },
+  {
+    name: 'pattern-matching',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.mixin(dark, @color) {
+  color: darken(@color, 10%);
+}
+.mixin(light, @color) {
+  color: lighten(@color, 10%);
+}
+.mixin(@_, @color) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'mixin guards',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.mixin(@a) when (lightness(@a) >= 50%) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.mixin(@a) when (lightness(@a) < 50%) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.mixin(@a) {
+  color: @a;
+}
+`,
+  },
+];
diff --git a/tests/less/mixin/relative.test.ts b/tests/less/mixin/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/mixin/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/others/__snapshots__/absolute.test.ts.snap b/tests/less/others/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..27f720e
--- /dev/null
+++ b/tests/less/others/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,57 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'endOfLine: crlf' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur
+        adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'tabWidth: 4' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+        elit proin ex massa hendrerit eu posuere;
+    & > a {
+        @apply lorem ipsum dolor sit amet consectetur
+            adipiscing elit proin ex massa hendrerit eu
+            posuere;
+        &:hover,
+        &:focus {
+            @apply lorem ipsum dolor sit amet consectetur
+                adipiscing elit proin ex massa hendrerit eu
+                posuere;
+        }
+    }
+}
+"
+`;
+
+exports[`'useTabs: true' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+	@apply lorem ipsum dolor sit amet consectetur adipiscing
+		elit proin ex massa hendrerit eu posuere;
+	& > a {
+		@apply lorem ipsum dolor sit amet consectetur adipiscing
+			elit proin ex massa hendrerit eu posuere;
+		&:hover,
+		&:focus {
+			@apply lorem ipsum dolor sit amet consectetur
+				adipiscing elit proin ex massa hendrerit eu posuere;
+		}
+	}
+}
+"
+`;
diff --git a/tests/less/others/__snapshots__/relative.test.ts.snap b/tests/less/others/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..713fdd1
--- /dev/null
+++ b/tests/less/others/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,55 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'endOfLine: crlf' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'tabWidth: 4' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    & > a {
+        @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+            ex massa hendrerit eu posuere;
+        &:hover,
+        &:focus {
+            @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+                ex massa hendrerit eu posuere;
+        }
+    }
+}
+"
+`;
+
+exports[`'useTabs: true' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+	@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+		ex massa hendrerit eu posuere;
+	& > a {
+		@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+			ex massa hendrerit eu posuere;
+		&:hover,
+		&:focus {
+			@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+				ex massa hendrerit eu posuere;
+		}
+	}
+}
+"
+`;
diff --git a/tests/less/others/absolute.test.ts b/tests/less/others/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/others/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/others/fixtures.ts b/tests/less/others/fixtures.ts
new file mode 100644
index 0000000..824abde
--- /dev/null
+++ b/tests/less/others/fixtures.ts
@@ -0,0 +1,61 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'tabWidth: 4',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      tabWidth: 4,
+    },
+  },
+  {
+    name: 'useTabs: true',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      useTabs: true,
+    },
+  },
+  {
+    name: 'endOfLine: crlf',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      endOfLine: 'crlf',
+    },
+  },
+];
diff --git a/tests/less/others/relative.test.ts b/tests/less/others/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/others/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/parent-selector/__snapshots__/absolute.test.ts.snap b/tests/less/parent-selector/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..025b464
--- /dev/null
+++ b/tests/less/parent-selector/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,88 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'changing selector order' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.header {
+  .menu {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+    .no-borderradius & {
+      @apply lorem ipsum dolor sit amet consectetur
+        adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'combinatorial explosion' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p,
+a,
+ul,
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+  & + & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+.button {
+  &-ok {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  &-cancel {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  &-custom {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'multiple &' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.link {
+  & + & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  & & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  && {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  &,
+  &ish {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/parent-selector/__snapshots__/relative.test.ts.snap b/tests/less/parent-selector/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..e62fa49
--- /dev/null
+++ b/tests/less/parent-selector/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,88 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'changing selector order' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.header {
+  .menu {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+    .no-borderradius & {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'combinatorial explosion' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p,
+a,
+ul,
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+  & + & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+.button {
+  &-ok {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  &-cancel {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  &-custom {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'multiple &' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.link {
+  & + & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  & & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  && {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  &,
+  &ish {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/parent-selector/absolute.test.ts b/tests/less/parent-selector/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/parent-selector/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/parent-selector/fixtures.ts b/tests/less/parent-selector/fixtures.ts
new file mode 100644
index 0000000..be0e952
--- /dev/null
+++ b/tests/less/parent-selector/fixtures.ts
@@ -0,0 +1,78 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  &:hover {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+.button {
+  &-ok {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+  &-cancel {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  &-custom {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'multiple &',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.link {
+  & + & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  & & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  && {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  &, &ish {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'changing selector order',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.header {
+  .menu {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    .no-borderradius & {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+  },
+  {
+    name: 'combinatorial explosion',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p, a, ul, li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & + & {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+];
diff --git a/tests/less/parent-selector/relative.test.ts b/tests/less/parent-selector/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/parent-selector/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/prettier-ignore/__snapshots__/absolute.test.ts.snap b/tests/less/prettier-ignore/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..7578fce
--- /dev/null
+++ b/tests/less/prettier-ignore/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,61 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'comments that contain the phrase \`pre…' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'ignore comment (1)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+"
+`;
+
+exports[`'ignore comment (2)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'ignore comment (3)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  // prettier-ignore
+  li { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/prettier-ignore/__snapshots__/relative.test.ts.snap b/tests/less/prettier-ignore/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..a8a70ad
--- /dev/null
+++ b/tests/less/prettier-ignore/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,61 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'comments that contain the phrase \`pre…' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'ignore comment (1)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+"
+`;
+
+exports[`'ignore comment (2)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'ignore comment (3)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  // prettier-ignore
+  li { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/less/prettier-ignore/absolute.test.ts b/tests/less/prettier-ignore/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/prettier-ignore/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/prettier-ignore/fixtures.ts b/tests/less/prettier-ignore/fixtures.ts
new file mode 100644
index 0000000..a863f53
--- /dev/null
+++ b/tests/less/prettier-ignore/fixtures.ts
@@ -0,0 +1,54 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'ignore comment (1)',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+`,
+  },
+  {
+    name: 'ignore comment (2)',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  to { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+}
+`,
+  },
+  {
+    name: 'ignore comment (3)',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  // prettier-ignore
+  li { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'comments that contain the phrase `prettier-ignore` but do not prevent formatting',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1, h2, h3, h4, h5, h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/less/prettier-ignore/relative.test.ts b/tests/less/prettier-ignore/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/prettier-ignore/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/pseudo-class/__snapshots__/absolute.test.ts.snap b/tests/less/pseudo-class/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..7fc20a4
--- /dev/null
+++ b/tests/less/pseudo-class/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,178 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`':active' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':checked' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':disabled' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':first-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':focus' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':has()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':hover' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':last-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':not()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':root' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/pseudo-class/__snapshots__/relative.test.ts.snap b/tests/less/pseudo-class/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..c3121f6
--- /dev/null
+++ b/tests/less/pseudo-class/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,178 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`':active' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':checked' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':disabled' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':first-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':focus' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':has()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':hover' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':last-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':not()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':root' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/pseudo-class/absolute.test.ts b/tests/less/pseudo-class/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/pseudo-class/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/pseudo-class/fixtures.ts b/tests/less/pseudo-class/fixtures.ts
new file mode 100644
index 0000000..47b1f7c
--- /dev/null
+++ b/tests/less/pseudo-class/fixtures.ts
@@ -0,0 +1,166 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: ':active',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':checked',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':disabled',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':first-of-type',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':focus',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':has()',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':hover',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':last-of-type',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':not()',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':root',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/less/pseudo-class/relative.test.ts b/tests/less/pseudo-class/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/pseudo-class/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/pseudo-element/__snapshots__/absolute.test.ts.snap b/tests/less/pseudo-element/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..aa110a9
--- /dev/null
+++ b/tests/less/pseudo-element/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,77 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'::after' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::before' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::first-letter' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::marker' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::placeholder' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::selection' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/pseudo-element/__snapshots__/relative.test.ts.snap b/tests/less/pseudo-element/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..20967e7
--- /dev/null
+++ b/tests/less/pseudo-element/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,77 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'::after' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::before' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::first-letter' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::marker' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::placeholder' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::selection' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/pseudo-element/absolute.test.ts b/tests/less/pseudo-element/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/pseudo-element/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/pseudo-element/fixtures.ts b/tests/less/pseudo-element/fixtures.ts
new file mode 100644
index 0000000..4ae1782
--- /dev/null
+++ b/tests/less/pseudo-element/fixtures.ts
@@ -0,0 +1,76 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '::after',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::before',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::first-letter',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::marker',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::placeholder',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::selection',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/less/pseudo-element/relative.test.ts b/tests/less/pseudo-element/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/pseudo-element/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/selector/__snapshots__/absolute.test.ts.snap b/tests/less/selector/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..3a52635
--- /dev/null
+++ b/tests/less/selector/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,206 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'& nesting selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur
+        adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'attribute selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'class selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'id selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'keyframe selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'namespace separator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'selector list' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'type selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'universal selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/selector/__snapshots__/relative.test.ts.snap b/tests/less/selector/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..51a7817
--- /dev/null
+++ b/tests/less/selector/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,206 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'& nesting selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'attribute selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'class selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'id selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'keyframe selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'namespace separator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'selector list' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'type selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'universal selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/selector/absolute.test.ts b/tests/less/selector/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/selector/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/selector/fixtures.ts b/tests/less/selector/fixtures.ts
new file mode 100644
index 0000000..4d47374
--- /dev/null
+++ b/tests/less/selector/fixtures.ts
@@ -0,0 +1,183 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '& nesting selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+  },
+  {
+    name: 'attribute selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'class selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'id selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'keyframe selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'namespace separator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'selector list',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1, h2, h3, h4, h5, h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'type selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'universal selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/less/selector/relative.test.ts b/tests/less/selector/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/selector/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/variable/__snapshots__/absolute.test.ts.snap b/tests/less/variable/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..c15c9c9
--- /dev/null
+++ b/tests/less/variable/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,14 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'variable interpolation' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+// Variables
+@my-selector: banner;
+
+// Usage
+.@{my-selector} {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/variable/__snapshots__/relative.test.ts.snap b/tests/less/variable/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..d02737b
--- /dev/null
+++ b/tests/less/variable/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,14 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'variable interpolation' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+// Variables
+@my-selector: banner;
+
+// Usage
+.@{my-selector} {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/less/variable/absolute.test.ts b/tests/less/variable/absolute.test.ts
new file mode 100644
index 0000000..3d711e1
--- /dev/null
+++ b/tests/less/variable/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/less/variable/fixtures.ts b/tests/less/variable/fixtures.ts
new file mode 100644
index 0000000..5eea107
--- /dev/null
+++ b/tests/less/variable/fixtures.ts
@@ -0,0 +1,17 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'variable interpolation',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+// Variables
+@my-selector: banner;
+
+// Usage
+.@{my-selector} {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/less/variable/relative.test.ts b/tests/less/variable/relative.test.ts
new file mode 100644
index 0000000..f713d75
--- /dev/null
+++ b/tests/less/variable/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'less',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/at-rule/__snapshots__/absolute.test.ts.snap b/tests/scss/at-rule/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..50e3d3e
--- /dev/null
+++ b/tests/scss/at-rule/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,283 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'@color-profile' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@container' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@counter-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-face' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-feature-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-palette-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@keyframes' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@layer' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@media' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@page' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@position-try' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@property' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@scope' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@starting-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@view-transition' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/at-rule/__snapshots__/relative.test.ts.snap b/tests/scss/at-rule/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..95ad088
--- /dev/null
+++ b/tests/scss/at-rule/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,283 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'@color-profile' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@container' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@counter-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-face' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-feature-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@font-palette-values' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@keyframes' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@layer' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@media' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@page' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@position-try' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@property' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'@scope' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@starting-style' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'@view-transition' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/at-rule/absolute.test.ts b/tests/scss/at-rule/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/at-rule/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/at-rule/fixtures.ts b/tests/scss/at-rule/fixtures.ts
new file mode 100644
index 0000000..2b1db16
--- /dev/null
+++ b/tests/scss/at-rule/fixtures.ts
@@ -0,0 +1,262 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '@color-profile',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@color-profile --swop5c {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.header {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@container',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* A container context based on inline size */
+.post {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Apply styles if the container is narrower than 650px */
+@container (width < 650px) {
+  .card {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@counter-style',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@counter-style circled-alpha {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.items {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-face',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@font-face {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+body {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-feature-values',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* At-rule for "nice-style" in Font One */
+@font-feature-values Font One {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* At-rule for "nice-style" in Font Two */
+@font-feature-values Font Two {
+  @styleset {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+/* Apply the at-rules with a single declaration */
+.nice-look {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@font-palette-values',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+@font-palette-values --Alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+.alternate {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@keyframes',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@keyframes slide-in {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@layer',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@layer type {
+  .box p {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@media',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@media print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@media screen, print {
+  body {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@page',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@page {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+section {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@media print {
+  button {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@position-try',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@position-try --custom-left {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@position-try --custom-bottom-right {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@property',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@property --myColor {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@property --myWidth {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '@scope',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@scope (.light-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+
+@scope (.dark-scheme) {
+  :scope {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@starting-style',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#target {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+@starting-style {
+  #target {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: '@view-transition',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@view-transition {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/scss/at-rule/relative.test.ts b/tests/scss/at-rule/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/at-rule/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/combinator/__snapshots__/absolute.test.ts.snap b/tests/scss/combinator/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..3844a9d
--- /dev/null
+++ b/tests/scss/combinator/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,47 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'child combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'descendant combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'next-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'subsequent-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/combinator/__snapshots__/relative.test.ts.snap b/tests/scss/combinator/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..feea6dc
--- /dev/null
+++ b/tests/scss/combinator/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,47 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'child combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'descendant combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'next-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'subsequent-sibling combinator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/combinator/absolute.test.ts b/tests/scss/combinator/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/combinator/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/combinator/fixtures.ts b/tests/scss/combinator/fixtures.ts
new file mode 100644
index 0000000..731a5a0
--- /dev/null
+++ b/tests/scss/combinator/fixtures.ts
@@ -0,0 +1,48 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'child combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+div > span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'descendant combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+li li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'next-sibling combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+li:first-of-type + li {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'subsequent-sibling combinator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p ~ span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/scss/combinator/relative.test.ts b/tests/scss/combinator/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/combinator/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/inheritance/__snapshots__/absolute.test.ts.snap b/tests/scss/inheritance/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..5ef8869
--- /dev/null
+++ b/tests/scss/inheritance/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,39 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* This CSS will print because %message-shared is extended. */
+%message-shared {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+// This CSS won't print because %equal-heights is never extended.
+%equal-heights {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.message {
+  @extend %message-shared;
+}
+
+.success {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.error {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.warning {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/inheritance/__snapshots__/relative.test.ts.snap b/tests/scss/inheritance/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..914e1f9
--- /dev/null
+++ b/tests/scss/inheritance/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,39 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* This CSS will print because %message-shared is extended. */
+%message-shared {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+// This CSS won't print because %equal-heights is never extended.
+%equal-heights {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.message {
+  @extend %message-shared;
+}
+
+.success {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.error {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.warning {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/inheritance/absolute.test.ts b/tests/scss/inheritance/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/inheritance/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/inheritance/fixtures.ts b/tests/scss/inheritance/fixtures.ts
new file mode 100644
index 0000000..ef697e6
--- /dev/null
+++ b/tests/scss/inheritance/fixtures.ts
@@ -0,0 +1,38 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* This CSS will print because %message-shared is extended. */
+%message-shared {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+// This CSS won't print because %equal-heights is never extended.
+%equal-heights {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.message {
+  @extend %message-shared;
+}
+
+.success {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.error {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.warning {
+  @extend %message-shared;
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/scss/inheritance/relative.test.ts b/tests/scss/inheritance/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/inheritance/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/mixin/__snapshots__/absolute.test.ts.snap b/tests/scss/mixin/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..e2acfc8
--- /dev/null
+++ b/tests/scss/mixin/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,20 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@mixin theme($theme: DarkGray) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.info {
+  @include theme;
+}
+.alert {
+  @include theme($theme: DarkRed);
+}
+.success {
+  @include theme($theme: DarkGreen);
+}
+"
+`;
diff --git a/tests/scss/mixin/__snapshots__/relative.test.ts.snap b/tests/scss/mixin/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..5f53882
--- /dev/null
+++ b/tests/scss/mixin/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,20 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@mixin theme($theme: DarkGray) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.info {
+  @include theme;
+}
+.alert {
+  @include theme($theme: DarkRed);
+}
+.success {
+  @include theme($theme: DarkGreen);
+}
+"
+`;
diff --git a/tests/scss/mixin/absolute.test.ts b/tests/scss/mixin/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/mixin/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/mixin/fixtures.ts b/tests/scss/mixin/fixtures.ts
new file mode 100644
index 0000000..7075e30
--- /dev/null
+++ b/tests/scss/mixin/fixtures.ts
@@ -0,0 +1,23 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@mixin theme($theme: DarkGray) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.info {
+  @include theme;
+}
+.alert {
+  @include theme($theme: DarkRed);
+}
+.success {
+  @include theme($theme: DarkGreen);
+}
+`,
+  },
+];
diff --git a/tests/scss/mixin/relative.test.ts b/tests/scss/mixin/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/mixin/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/nesting/__snapshots__/absolute.test.ts.snap b/tests/scss/nesting/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..7031ab8
--- /dev/null
+++ b/tests/scss/nesting/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,22 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  li {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/scss/nesting/__snapshots__/relative.test.ts.snap b/tests/scss/nesting/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..7e0c0d5
--- /dev/null
+++ b/tests/scss/nesting/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,22 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'example' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  li {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/scss/nesting/absolute.test.ts b/tests/scss/nesting/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/nesting/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/nesting/fixtures.ts b/tests/scss/nesting/fixtures.ts
new file mode 100644
index 0000000..dc1e974
--- /dev/null
+++ b/tests/scss/nesting/fixtures.ts
@@ -0,0 +1,21 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'example',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  li { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+];
diff --git a/tests/scss/nesting/relative.test.ts b/tests/scss/nesting/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/nesting/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/others/__snapshots__/absolute.test.ts.snap b/tests/scss/others/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..27f720e
--- /dev/null
+++ b/tests/scss/others/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,57 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'endOfLine: crlf' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur
+        adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'tabWidth: 4' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+        elit proin ex massa hendrerit eu posuere;
+    & > a {
+        @apply lorem ipsum dolor sit amet consectetur
+            adipiscing elit proin ex massa hendrerit eu
+            posuere;
+        &:hover,
+        &:focus {
+            @apply lorem ipsum dolor sit amet consectetur
+                adipiscing elit proin ex massa hendrerit eu
+                posuere;
+        }
+    }
+}
+"
+`;
+
+exports[`'useTabs: true' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+	@apply lorem ipsum dolor sit amet consectetur adipiscing
+		elit proin ex massa hendrerit eu posuere;
+	& > a {
+		@apply lorem ipsum dolor sit amet consectetur adipiscing
+			elit proin ex massa hendrerit eu posuere;
+		&:hover,
+		&:focus {
+			@apply lorem ipsum dolor sit amet consectetur
+				adipiscing elit proin ex massa hendrerit eu posuere;
+		}
+	}
+}
+"
+`;
diff --git a/tests/scss/others/__snapshots__/relative.test.ts.snap b/tests/scss/others/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..713fdd1
--- /dev/null
+++ b/tests/scss/others/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,55 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'endOfLine: crlf' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'tabWidth: 4' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    & > a {
+        @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+            ex massa hendrerit eu posuere;
+        &:hover,
+        &:focus {
+            @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+                ex massa hendrerit eu posuere;
+        }
+    }
+}
+"
+`;
+
+exports[`'useTabs: true' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+	@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+		ex massa hendrerit eu posuere;
+	& > a {
+		@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+			ex massa hendrerit eu posuere;
+		&:hover,
+		&:focus {
+			@apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+				ex massa hendrerit eu posuere;
+		}
+	}
+}
+"
+`;
diff --git a/tests/scss/others/absolute.test.ts b/tests/scss/others/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/others/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/others/fixtures.ts b/tests/scss/others/fixtures.ts
new file mode 100644
index 0000000..824abde
--- /dev/null
+++ b/tests/scss/others/fixtures.ts
@@ -0,0 +1,61 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'tabWidth: 4',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      tabWidth: 4,
+    },
+  },
+  {
+    name: 'useTabs: true',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      useTabs: true,
+    },
+  },
+  {
+    name: 'endOfLine: crlf',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+    options: {
+      endOfLine: 'crlf',
+    },
+  },
+];
diff --git a/tests/scss/others/relative.test.ts b/tests/scss/others/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/others/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/prettier-ignore/__snapshots__/absolute.test.ts.snap b/tests/scss/prettier-ignore/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..7578fce
--- /dev/null
+++ b/tests/scss/prettier-ignore/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,61 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'comments that contain the phrase \`pre…' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'ignore comment (1)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+"
+`;
+
+exports[`'ignore comment (2)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'ignore comment (3)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+
+  // prettier-ignore
+  li { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/scss/prettier-ignore/__snapshots__/relative.test.ts.snap b/tests/scss/prettier-ignore/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..a8a70ad
--- /dev/null
+++ b/tests/scss/prettier-ignore/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,61 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'comments that contain the phrase \`pre…' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'ignore comment (1)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+"
+`;
+
+exports[`'ignore comment (2)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'ignore comment (3)' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+
+  // prettier-ignore
+  li { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
diff --git a/tests/scss/prettier-ignore/absolute.test.ts b/tests/scss/prettier-ignore/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/prettier-ignore/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/prettier-ignore/fixtures.ts b/tests/scss/prettier-ignore/fixtures.ts
new file mode 100644
index 0000000..a863f53
--- /dev/null
+++ b/tests/scss/prettier-ignore/fixtures.ts
@@ -0,0 +1,54 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: 'ignore comment (1)',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* prettier-ignore */
+#blue { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+`,
+  },
+  {
+    name: 'ignore comment (2)',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  /* prettier-ignore */
+  from { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  50% { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+  to { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+}
+`,
+  },
+  {
+    name: 'ignore comment (3)',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+nav {
+  ul {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+
+  // prettier-ignore
+  li { @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere; }
+
+  a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'comments that contain the phrase `prettier-ignore` but do not prevent formatting',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/**
+ * prettier-ignore
+ */
+h1, h2, h3, h4, h5, h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/scss/prettier-ignore/relative.test.ts b/tests/scss/prettier-ignore/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/prettier-ignore/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/pseudo-class/__snapshots__/absolute.test.ts.snap b/tests/scss/pseudo-class/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..7fc20a4
--- /dev/null
+++ b/tests/scss/pseudo-class/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,178 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`':active' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':checked' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':disabled' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':first-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':focus' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':has()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':hover' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':last-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':not()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':root' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/pseudo-class/__snapshots__/relative.test.ts.snap b/tests/scss/pseudo-class/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..c3121f6
--- /dev/null
+++ b/tests/scss/pseudo-class/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,178 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`':active' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':checked' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':disabled' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':first-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':focus' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':has()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':hover' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':last-of-type' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':not()' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`':root' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/pseudo-class/absolute.test.ts b/tests/scss/pseudo-class/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/pseudo-class/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/pseudo-class/fixtures.ts b/tests/scss/pseudo-class/fixtures.ts
new file mode 100644
index 0000000..47b1f7c
--- /dev/null
+++ b/tests/scss/pseudo-class/fixtures.ts
@@ -0,0 +1,166 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: ':active',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Unvisited links */
+a:link {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Visited links */
+a:visited {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Hovered links */
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* Active links */
+a:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Active paragraphs */
+p:active {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':checked',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+div,
+select {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Labels for checked inputs */
+input:checked + label {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Radio element, when checked */
+input[type="radio"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Checkbox element, when checked */
+input[type="checkbox"]:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Option elements, when selected */
+option:checked {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':disabled',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input[type="text"]:disabled {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':first-of-type',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:first-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':focus',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.blue-input:focus {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':has()',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+section:has(.featured) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':hover',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+a:hover {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':last-of-type',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p:last-of-type {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':not()',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* <p> elements that don't have a class \`.fancy\` */
+p:not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <p> elements */
+body :not(p) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div):not(.fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements that are not <div>s or \`.fancy\` */
+body :not(div, .fancy) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Elements inside an <h2> that aren't a <span> with a class of \`.foo\` */
+h2 :not(span.foo) {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: ':root',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+:root {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/scss/pseudo-class/relative.test.ts b/tests/scss/pseudo-class/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/pseudo-class/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/pseudo-element/__snapshots__/absolute.test.ts.snap b/tests/scss/pseudo-element/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..aa110a9
--- /dev/null
+++ b/tests/scss/pseudo-element/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,77 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'::after' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::before' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::first-letter' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::marker' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::placeholder' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::selection' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/pseudo-element/__snapshots__/relative.test.ts.snap b/tests/scss/pseudo-element/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..20967e7
--- /dev/null
+++ b/tests/scss/pseudo-element/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,77 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'::after' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::before' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::first-letter' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::marker' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::placeholder' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'::selection' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/pseudo-element/absolute.test.ts b/tests/scss/pseudo-element/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/pseudo-element/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/pseudo-element/fixtures.ts b/tests/scss/pseudo-element/fixtures.ts
new file mode 100644
index 0000000..4ae1782
--- /dev/null
+++ b/tests/scss/pseudo-element/fixtures.ts
@@ -0,0 +1,76 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '::after',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.exciting-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.boring-text::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::before',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+q::before {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+q::after {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::first-letter',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+h2 + p::first-letter {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::marker',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+ul li::marker {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::placeholder',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+input::placeholder {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: '::selection',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+/* Make selected text gold on a red background */
+::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Make selected text in a paragraph white on a blue background */
+p::selection {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/scss/pseudo-element/relative.test.ts b/tests/scss/pseudo-element/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/pseudo-element/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/selector/__snapshots__/absolute.test.ts.snap b/tests/scss/selector/__snapshots__/absolute.test.ts.snap
new file mode 100644
index 0000000..3a52635
--- /dev/null
+++ b/tests/scss/selector/__snapshots__/absolute.test.ts.snap
@@ -0,0 +1,206 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'& nesting selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur
+        adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'attribute selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'class selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'id selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'keyframe selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing
+      elit proin ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'namespace separator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'selector list' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'type selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'universal selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing
+    elit proin ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/selector/__snapshots__/relative.test.ts.snap b/tests/scss/selector/__snapshots__/relative.test.ts.snap
new file mode 100644
index 0000000..51a7817
--- /dev/null
+++ b/tests/scss/selector/__snapshots__/relative.test.ts.snap
@@ -0,0 +1,206 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`'& nesting selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+        ex massa hendrerit eu posuere;
+    }
+  }
+}
+"
+`;
+
+exports[`'attribute selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'class selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'id selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'keyframe selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+      ex massa hendrerit eu posuere;
+  }
+}
+"
+`;
+
+exports[`'namespace separator' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'selector list' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'type selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
+
+exports[`'universal selector' > expectation 1`] = `
+"/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin
+    ex massa hendrerit eu posuere;
+}
+"
+`;
diff --git a/tests/scss/selector/absolute.test.ts b/tests/scss/selector/absolute.test.ts
new file mode 100644
index 0000000..fb5c370
--- /dev/null
+++ b/tests/scss/selector/absolute.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'absolute',
+};
+
+testSnapshotEach(fixtures, options);
diff --git a/tests/scss/selector/fixtures.ts b/tests/scss/selector/fixtures.ts
new file mode 100644
index 0000000..4d47374
--- /dev/null
+++ b/tests/scss/selector/fixtures.ts
@@ -0,0 +1,183 @@
+import type { Fixture } from '../../settings';
+
+export const fixtures: Omit<Fixture, 'output'>[] = [
+  {
+    name: '& nesting selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.example {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  & > a {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    &:hover,
+    &:focus {
+      @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+    }
+  }
+}
+`,
+  },
+  {
+    name: 'attribute selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Internal links, beginning with "#" */
+a[href^="#"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "example" anywhere in the URL */
+a[href*="example"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "insensitive" anywhere in the URL,
+   regardless of capitalization */
+a[href*="insensitive" i] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links with "cAsE" anywhere in the URL,
+with matching capitalization */
+a[href*="cAsE" s] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that end in ".org" */
+a[href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* Links that start with "https://" and end in ".org" */
+a[href^="https://"][href$=".org"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'class selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+.red {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.yellow-bg {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.fancy {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'id selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+#blue {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'keyframe selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@keyframes slide-and-fade {
+  from {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+  50% {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+  to {
+    @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+  }
+}
+`,
+  },
+  {
+    name: 'namespace separator',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+@namespace svgNamespace url("http://www.w3.org/2000/svg");
+@namespace htmlNameSpace url("http://www.w3.org/1999/xhtml");
+/* All \`<a>\`s in the default namespace, in this case, all \`<a>\`s */
+a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* no namespace */
+|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* all namespaces (including no namespace) */
+*|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* only the svgNamespace namespace, which is <svg> content */
+svgNamespace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+/* The htmlNameSpace namespace, which is the HTML document */
+htmlNameSpace|a {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'selector list',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+h1, h2, h3, h4, h5, h6 {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+#main,
+.content,
+article,
+h1 + p {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'type selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+span {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+  {
+    name: 'universal selector',
+    input: `
+/* --------------------------------------------------------| printWidth=60 (in snapshot) */
+* [lang^="en"] {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+*.warning {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+*#maincontent {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+.floating {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+
+/* automatically clear the next sibling after a floating element */
+.floating + * {
+  @apply lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere;
+}
+`,
+  },
+];
diff --git a/tests/scss/selector/relative.test.ts b/tests/scss/selector/relative.test.ts
new file mode 100644
index 0000000..c1a2d5e
--- /dev/null
+++ b/tests/scss/selector/relative.test.ts
@@ -0,0 +1,13 @@
+import { thisPlugin, testSnapshotEach } from '../../adaptor';
+import { baseOptions } from '../../settings';
+import { fixtures } from './fixtures';
+
+const options = {
+  ...baseOptions,
+  plugins: [thisPlugin],
+  parser: 'scss',
+  printWidth: 60,
+  endingPosition: 'relative',
+};
+
+testSnapshotEach(fixtures, options);