diff --git a/src/assets/stylesheets/ErrorMessage.scss b/src/assets/stylesheets/ErrorMessage.scss
index 5f5b5a6b5..c0889fb9e 100644
--- a/src/assets/stylesheets/ErrorMessage.scss
+++ b/src/assets/stylesheets/ErrorMessage.scss
@@ -4,7 +4,7 @@
 .error-message {
   color: var(--rpf-red-900);
   background-color: var(--rpf-red-100);
-  border-block-start: 1px solid var(--editor-color-outline);
+  border-block: 1px solid var(--editor-color-outline);
   padding: var(--space-1);
   overflow-y: auto;
   scrollbar-width: thin;
diff --git a/src/assets/stylesheets/PythonRunner.scss b/src/assets/stylesheets/PythonRunner.scss
index 87a25e53e..5ec38191d 100644
--- a/src/assets/stylesheets/PythonRunner.scss
+++ b/src/assets/stylesheets/PythonRunner.scss
@@ -97,11 +97,26 @@
   overflow: hidden;
 
   &--text {
-    flex: 3;
+    flex: 1;
+
+    .react-tabs__tab-panel--selected {
+      min-block-size: var(--space-6);
+    }
+
+    @container (min-width: 720px) {
+      flex: 2;
+      .react-tabs__tab-panel--selected {
+        min-block-size: var(--space-8);
+      }
+    }
   }
 
   &--visual {
-    flex: 7;
+    flex: 1;
+
+    @container (min-width: 720px) {
+      flex: 3;
+    }
 
     .--light & {
       border-block-end: 5px solid $rpf-grey-100;