Index: wp-includes/css/admin-bar.css
===================================================================
--- wp-includes/css/admin-bar.css	(revision 40416)
+++ wp-includes/css/admin-bar.css	(working copy)
@@ -651,6 +651,8 @@
 	transition-property: width, background;
 	-webkit-transition-timing-function: ease;
 	transition-timing-function: ease;
+	float: inherit;
+	display: inline-block;
 }
 
 #wpadminbar > #wp-toolbar > #wp-admin-bar-top-secondary > #wp-admin-bar-search #adminbarsearch input.adminbar-input:focus {