diff --git a/services/web/frontend/stylesheets/app/editor/ide-react.less b/services/web/frontend/stylesheets/app/editor/ide-react.less
index dda69b3b33..a7e3e6caa5 100644
--- a/services/web/frontend/stylesheets/app/editor/ide-react.less
+++ b/services/web/frontend/stylesheets/app/editor/ide-react.less
@@ -39,6 +39,7 @@
   flex-grow: 1;
   background-color: @pdf-bg;
   overflow-y: hidden;
+  z-index: 0;
 }
 
 .horizontal-resize-handle {