Index: skins/colibri/src/main/resources/colibri/colibri.css
===================================================================
--- skins/colibri/src/main/resources/colibri/colibri.css	(revision 23177)
+++ skins/colibri/src/main/resources/colibri/colibri.css	(working copy)
@@ -3239,7 +3239,6 @@
 
 #docExtraTabs {
   border: 0px !important;
-  background-color: white;
 }
 
 #docextrapanes {
@@ -3656,18 +3655,6 @@
 }
 
 /**********************************************************************************************/
-/** Tabs **/
-
-/* Bg-color needed for IE6 */
-#docExtraTabs {
-  background: $theme.menuBackgroundColor;
-}
-
-#xwikidatacontents {
-  background: $theme.menuBackgroundColor;
-}
-
-/**********************************************************************************************/
 /** Menu **/
 
 #actionmenu div.leftmenu div:hover a,