diff --git a/client/src/templates/Challenges/classic/classic.css b/client/src/templates/Challenges/classic/classic.css
index 26afb57941..bc5df4e463 100644
--- a/client/src/templates/Challenges/classic/classic.css
+++ b/client/src/templates/Challenges/classic/classic.css
@@ -108,3 +108,7 @@ button.monaco-editor-tab:hover {
 .action-row .monaco-editor-tabs .monaco-editor-tab {
   top: 0;
 }
+
+.monaco-editor .squiggly-hint {
+  background: none !important;
+}