diff --git a/app/assets/stylesheets/common.scss b/app/assets/stylesheets/common.scss
index d9669b5e79..66cc2ffc92 100644
--- a/app/assets/stylesheets/common.scss
+++ b/app/assets/stylesheets/common.scss
@@ -55,6 +55,7 @@ table a code {
   bottom: 0;
   width: 100%;
   opacity: 0.8;
+  z-index: 100;
 
   .flash-notice {
     background: #49C;