Ticket #33557: 33557.3.diff

src/wp-admin/css/common.css

@@ -2049 +2049 @@
 
 .metabox-holder h3.hndle, /* Back-compat for pre-4.4 */
 .metabox-holder .stuffbox > h3, /* Back-compat for pre-4.4 */
+.metabox-holder .postbox > h3, /* Back-compat for pre-4.4 */
 .metabox-holder h2 {
         font-size: 14px;
         padding: 8px 12px;
@@ -3429 +3430 @@
 
         .metabox-holder h3.hndle, /* Back-compat for pre-4.4 */
         .metabox-holder .stuffbox > h3, /* Back-compat for pre-4.4 */
+        .metabox-holder .postbox > h3, /* Back-compat for pre-4.4 */
         .metabox-holder h2 {
                 padding: 12px;
         }