diff --git a/rhein/page/default_page/index.css b/rhein/page/default_page/index.css
index 7ceff9f..86541c7 100644
--- a/rhein/page/default_page/index.css
+++ b/rhein/page/default_page/index.css
@@ -19,6 +19,10 @@
   padding-top:          5px;
 }
 
+.olPopup {
+    background: black;
+}
+
 #copyright {
   float: 		left;
   margin-left:         162px;