diff --git a/app/assets/stylesheets/highlight/dark.scss b/app/assets/stylesheets/highlight/dark.scss
index 4196ea7ad29..178bd583aec 100644
--- a/app/assets/stylesheets/highlight/dark.scss
+++ b/app/assets/stylesheets/highlight/dark.scss
@@ -2,6 +2,7 @@
   pre {
     background-color: #333;
     color: #eee;
+    float: left;
   }
 
   .hll { display: block; background-color: darken($hover, 65%) }