Ticket #27949: 27949.patch

src/wp-includes/css/media-views.css

@@ -1390 +1390 @@
         margin-top: 35px;
 }
 
-.attachment-info .thumbnail:after {
+.attachment-info .thumbnail-image:after {
         content: '';
         display: block;
         position: absolute;

src/wp-includes/media-template.php

@@ -294 +294 @@
                         </span>
                 </h3>
                 <div class="attachment-info">
-                        <div class="thumbnail">
+                        <div class="thumbnail thumbnail-{{ data.type }}">
                                 <# if ( data.uploading ) { #>
                                         <div class="media-progress-bar"><div></div></div>
                                 <# } else if ( 'image' === data.type ) { #>