diff --git a/source/css/style.styl b/source/css/style.styl
index 38f3090..dee694b 100644
--- a/source/css/style.styl
+++ b/source/css/style.styl
@@ -358,7 +358,7 @@ figure.highlight
     margin: 1em 0 1em !important
     &.folded
         .highlight-body
-            display: none
+            height: 0
 
     pre,
     table tr:hover