Ticket #41630: 41630.2.diff

wp-admin/css/widgets.css

@@ -92 +92 @@
 }
 
 .media-widget-control .media-widget-preview {
+        background: #f1f1f1;
         text-align: center;
 }
 .media-widget-control .media-widget-preview .notice {
@@ -106 +107 @@
 }
 .media-widget-control .media-widget-preview img {
         max-width: 100%;
+        vertical-align: middle;
 }
 .media-widget-control .media-widget-preview .wp-video-shortcode {
         background: #000;