diff --git a/src/theme/css/chrome.css b/src/theme/css/chrome.css
index 2314f7a1..728c33e5 100644
--- a/src/theme/css/chrome.css
+++ b/src/theme/css/chrome.css
@@ -271,6 +271,7 @@ pre > .buttons button {
     }
 }
 pre > code {
+    display: block;
     padding: 1rem;
 }