diff --git a/htroot/env/base.css b/htroot/env/base.css
index 88a130262..a987108ad 100644
--- a/htroot/env/base.css
+++ b/htroot/env/base.css
@@ -300,6 +300,7 @@ clear:both;
 	position: absolute;
 	left: 0px;
 	top: 0px;
+	z-index: -10;
 }
 
 div.bookmarkList {