Index: wp-admin/css/wp-admin.dev.css
===================================================================
--- wp-admin/css/wp-admin.dev.css	(revision 19188)
+++ wp-admin/css/wp-admin.dev.css	(working copy)
@@ -3126,6 +3126,9 @@
 	cursor: se-resize;
 	margin: 0 2px;
 	position: relative;
+}
+
+#post-body .postarea .wp_themeSkin .mceStatusbar a.mceResize {
 	top: 22px;
 }
 
Index: wp-includes/css/editor-buttons.dev.css
===================================================================
--- wp-includes/css/editor-buttons.dev.css	(revision 19188)
+++ wp-includes/css/editor-buttons.dev.css	(working copy)
@@ -839,7 +839,7 @@
 }
 
 .wp_themeSkin iframe {
-	background: transparent;
+	background: #fff;
 }
 
 .wp_themeSkin .mceButton,