diff --git a/src/wp-admin/css/themes.css b/src/wp-admin/css/themes.css
index 6f8c51d911..b611e3006c 100644
--- a/src/wp-admin/css/themes.css
+++ b/src/wp-admin/css/themes.css
@@ -168,8 +168,8 @@
 	opacity: 0;
 	position: absolute;
 	top: 35%;
-	right: 25%;
-	left: 25%;
+	right: 20%;
+	left: 20%;
 	background: #23282d;
 	background: rgba(0,0,0,0.7);
 	color: #fff;