Index: src/wp-includes/css/media-views.css
===================================================================
--- src/wp-includes/css/media-views.css	(revision 31285)
+++ src/wp-includes/css/media-views.css	(working copy)
@@ -666,7 +666,7 @@
 }
 
 .media-frame.hide-menu .media-frame-menu {
-	left: -200px;
+	display: none;
 }
 
 .media-frame.hide-toolbar .media-frame-content {