diff --git a/src/theme/css/chrome.css b/src/theme/css/chrome.css
index 29992f7b..cec27280 100644
--- a/src/theme/css/chrome.css
+++ b/src/theme/css/chrome.css
@@ -260,6 +260,7 @@ pre > .buttons button {
     }
 }
 pre > code {
+    display: block;
     padding: 1rem;
 }