diff --git a/scss/_code.scss b/scss/_code.scss
index ea660bcdbf..0ac1abe548 100644
--- a/scss/_code.scss
+++ b/scss/_code.scss
@@ -35,6 +35,7 @@ kbd {
 // Blocks of code
 pre {
   display: block;
+  overflow: auto; // Normalize v4 removed this property, causing `<pre>` content to break out of wrapping code snippets
   margin-top: 0;
   margin-bottom: 1rem;
   font-size: $code-font-size;