Index: src/wp-admin/css/customize-nav-menus.css
===================================================================
--- src/wp-admin/css/customize-nav-menus.css	(revision 38193)
+++ src/wp-admin/css/customize-nav-menus.css	(working copy)
@@ -20,6 +20,7 @@
 .customize-control-nav_menu_location .edit-menu {
 	margin-left: 6px;
 	vertical-align: middle;
+	line-height: 28px;
 	color: #0073aa;
 	text-decoration: underline;
 }