diff --git a/frontend/src/styles/common.scss b/frontend/src/styles/common.scss
index 851c448c3..2901b40cb 100644
--- a/frontend/src/styles/common.scss
+++ b/frontend/src/styles/common.scss
@@ -191,6 +191,7 @@ html {
     .bt {
         margin-top: -2px;
     }
+    z-index: 1;
 }
 
 .table-button {