diff --git a/src/main/frontend/extensions/code.css b/src/main/frontend/extensions/code.css
index 16fde1f195..f7f0b95cc0 100644
--- a/src/main/frontend/extensions/code.css
+++ b/src/main/frontend/extensions/code.css
@@ -11,7 +11,8 @@
   > .CodeMirror {
     z-index: 0;
     height: auto;
-    margin: 6px 0 0 0;
+    padding: 6px 0 0 0;
     font-family: Fira Code, Monaco, Menlo, Consolas, 'COURIER NEW', monospace;
+    max-width: 86vw;
   }
 }