diff --git a/src/wp-admin/css/wp-admin.css b/src/wp-admin/css/wp-admin.css
index eeddcd6554..35693f9e21 100644
--- a/src/wp-admin/css/wp-admin.css
+++ b/src/wp-admin/css/wp-admin.css
@@ -10130,7 +10130,7 @@ div.widget-liquid-left {
 
 div.widget-liquid-right {
 	float: right;
-	width: 60%;
+	width: 58%;
 }
 
 /* Widgets Left - Available Widgets */
@@ -10232,6 +10232,11 @@ div#widgets-right:after {
 	visibility: hidden;
 }
 
+div#widgets-right .sidebars-column-1,
+div#widgets-right .sidebars-column-2 {
+	max-width: 450px;
+}
+
 div#widgets-right .widgets-holder-wrap {
 	margin: 10px 0 0 0;
 }