diff --git a/app/assets/stylesheets/common/base/code_highlighting.scss b/app/assets/stylesheets/common/base/code_highlighting.scss
index 1cd6d077a14..0b8e75f8ab5 100644
--- a/app/assets/stylesheets/common/base/code_highlighting.scss
+++ b/app/assets/stylesheets/common/base/code_highlighting.scss
@@ -19,7 +19,7 @@ code {
   color: var(--primary-very-high);
   background: var(--hljs-bg);
   border-radius: var(--d-border-radius);
-  font-size: 0.875em;
+  font-size: 14px;
   line-height: calc((13 + 4) / 13);
 }
 
@@ -29,6 +29,15 @@ pre > code {
   max-height: 500px;
 }
 
+h1 code,
+h2 code,
+h3 code,
+h4 code,
+h5 code,
+h6 code {
+  font-size: inherit;
+}
+
 .hljs-comment,
 .hljs-doctag,
 .hljs-code,