diff --git a/css/css-flexbox/getcomputedstyle/first-line-computed-style.html b/css/css-flexbox/getcomputedstyle/first-line-computed-style.html
deleted file mode 100644
index a710c7c3bdf47f..00000000000000
--- a/css/css-flexbox/getcomputedstyle/first-line-computed-style.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!DOCTYPE html>
-<meta name="assert" content="::first-line style cannot be applied to a flexbox since it does not contribute a first formatted line. Checks via getComputedStyle">
-<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#flex-containers">
-<style>
-  div { display: flex; }
-  div::first-line { vertical-align: top; }
-</style>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-
-<div>Triceratops</div>
-
-<script>
-  test(function() {
-    let verticalAlign = getComputedStyle(document.querySelector('div'), '::first-line').verticalAlign;
-    assert_not_equals(verticalAlign, "top");
-  });
-</script>
