Ticket #46509: 46509.1.diff

src/wp-admin/css/customize-widgets.css

@@ -85 +85 @@
 .widget-inside {
         padding: 1px 10px 10px 10px;
         border-top: none;
-        line-height: 16px;
+        line-height: 1.23076923;
 }
 
 .customize-control-widget_form.expanded .widget-action .toggle-indicator:before {