diff --git a/static/editor.less b/static/editor.less
index 0d48ba7e1..69bdc6855 100644
--- a/static/editor.less
+++ b/static/editor.less
@@ -98,7 +98,7 @@
   bottom: 0;
   width: 15px;
   overflow-y: auto;
-  z-index: 1;
+  z-index: 3;
 }
 
 .editor .scroll-view {