Index: wp-admin/css/wp-admin.dev.css
===================================================================
--- wp-admin/css/wp-admin.dev.css	(revision 19238)
+++ wp-admin/css/wp-admin.dev.css	(working copy)
@@ -2890,6 +2890,7 @@
 }
 
 #post-body ul.category-tabs,
+#post-body ul.wp-tab-bar,
 #post-body ul.add-menu-item-tabs {
 	float: left;
 	width: 120px;
@@ -2900,16 +2901,20 @@
 }
 
 #post-body ul.category-tabs li,
+#post-body ul.wp-tab-bar li,
 #post-body ul.add-menu-item-tabs li {
 	padding: 8px;
 }
 
 #post-body ul.category-tabs li.tabs,
+#post-body ul.wp-tab-bar li.wp-tab-active,
 #post-body ul.add-menu-item-tabs li.tabs {
 	-webkit-border-top-left-radius: 3px;
 	-webkit-border-bottom-left-radius: 3px;
+	-webkit-border-top-right-radius: 0px;
 	border-top-left-radius: 3px;
 	border-bottom-left-radius: 3px;
+	border-top-right-radius: 0px;
 }
 
 .wp-tab-panel,
@@ -2932,15 +2937,18 @@
 	max-height: 205px;
 }
 
-div.tabs-panel-active {
+div.tabs-panel-active,
+div.wp-tab-panel-active {
 	display:block;
 }
 
-div.tabs-panel-inactive {
+div.tabs-panel-inactive,
+div.wp-tab-panel-inactive {
 	display:none;
 }
 
 #post-body .categorydiv div.tabs-panel,
+#post-body div.wp-tab-panel,
 .taxonomy div.tabs-panel,
 #post-body #linkcategorydiv div.tabs-panel {
 	margin: 0 5px 0 125px;
@@ -2948,21 +2956,23 @@
 
 .has-right-sidebar #side-sortables .category-tabs li,
 #side-sortables .add-menu-item-tabs li,
-.wp-tab-bar li {
+.has-right-sidebar #side-sortables .wp-tab-bar li {
 	display: inline;
 	line-height: 1.35em;
 }
 
+.no-js #side-sortables .wp-tab-bar li.hide-if-no-js,
 .no-js #side-sortables .category-tabs li.hide-if-no-js {
  	display: none;
 }
 
 #side-sortables .category-tabs a,
 #side-sortables .add-menu-item-tabs a,
-.wp-tab-bar a {
+#side-sortables .wp-tab-bar a {
 	text-decoration: none;
 }
 
+#side-sortables .wp-tab-bar,
 #side-sortables .category-tabs {
 	margin: 8px 0 3px;
 }
@@ -2972,7 +2982,7 @@
 }
 
 #side-sortables .add-menu-item-tabs,
-.wp-tab-bar {
+#side-sortables .wp-tab-bar {
 	margin-bottom: 3px;
 }
 
@@ -3033,6 +3043,7 @@
 }
 
 #post-body .category-tabs li.tabs,
+#post-body .wp-tab-bar li.wp-tab-active,
 #post-body .add-menu-item-tabs li.tabs {
 	border-style: solid none solid solid;
 	border-width: 1px 0 1px 1px;
@@ -3305,6 +3316,7 @@
 }
 
 #post-body ul.category-tabs,
+#post-body ul.wp-tab-bar,
 #post-body ul.add-menu-item-tabs {
 	float: left;
 	width: 120px;
@@ -3315,11 +3327,13 @@
 }
 
 #post-body ul.category-tabs li,
+#post-body ul.wp-tab-bar li,
 #post-body ul.add-menu-item-tabs li {
 	padding: 8px;
 }
 
 #post-body ul.category-tabs li.tabs,
+#post-body ul.wp-tab-bar li.wp-tab-active,
 #post-body ul.add-menu-item-tabs li.tabs {
 	-webkit-border-top-left-radius: 3px;
 	-webkit-border-bottom-left-radius: 3px;
@@ -3355,6 +3369,7 @@
 }
 
 #post-body .categorydiv div.tabs-panel,
+#post-body div.wp-tab-panel,
 .taxonomy div.tabs-panel,
 #post-body #linkcategorydiv div.tabs-panel {
 	margin: 0 5px 0 125px;
@@ -4333,6 +4348,7 @@
 }
 
 #post-body ul.category-tabs li.tabs a,
+#post-body ul.wp-tab-bar li.wp-tab-active a,
 #post-body ul.add-menu-item-tabs li.tabs a,
 #TB_window #TB_title a.tb-theme-preview-link,
 #TB_window #TB_title a.tb-theme-preview-link:visited {