diff --git a/static/editor.less b/static/editor.less
index 7e81c9cab..e36496814 100644
--- a/static/editor.less
+++ b/static/editor.less
@@ -120,12 +120,12 @@
 
 .editor .underlayer, .editor .lines, .editor .overlayer {
   width: 100%;
-  height: 100%;
 }
 
 .editor .underlayer {
   z-index: 0;
   position: absolute;
+  height: 100%;
 }
 
 .editor .lines {