diff --git a/src/editor/assets/css/index.css b/src/editor/assets/css/index.css
index 1189064..751c963 100644
--- a/src/editor/assets/css/index.css
+++ b/src/editor/assets/css/index.css
@@ -443,6 +443,7 @@
   padding: 16px;
   white-space: nowrap;
   position: absolute;
+  z-index: 1;
   text-align: center;
   display: none;
 }