diff --git a/src/wp-admin/css/wp-admin.css b/src/wp-admin/css/wp-admin.css
index 5ff644d69d..4c1be298f9 100644
--- a/src/wp-admin/css/wp-admin.css
+++ b/src/wp-admin/css/wp-admin.css
@@ -6865,6 +6865,7 @@ body.folded .theme-overlay .theme-wrap {
 	float: left;
 	margin: 0 30px 0 0;
 	width: 55%;
+	max-width: 880px;
 	text-align: center;
 }