Index: src/wp-includes/css/media-views.css
===================================================================
--- src/wp-includes/css/media-views.css	(revision 32113)
+++ src/wp-includes/css/media-views.css	(working copy)
@@ -232,13 +232,11 @@
 .media-toolbar-primary {
 	float: right;
 	height: 100%;
-	max-width: 33%;
 }
 
 .media-toolbar-secondary {
 	float: left;
 	height: 100%;
-	max-width: 66%;
 }
 
 .media-toolbar-primary > .media-button,
@@ -1073,6 +1071,14 @@
 	display: none;
 }
 
+.attachments-browser .media-toolbar-primary {
+	max-width: 33%;
+}
+
+.attachments-browser .media-toolbar-secondary {
+	max-width: 66%;
+}
+
 .uploader-inline .close {
 	background-color: transparent;
 	border: 0;