Ticket #27903: 27903.patch

src/wp-includes/css/editor.css

@@ -279 +279 @@
     border-color: #bbb;
 }
 
+.mce-toolbar .mce-btn-group .mce-btn.mce-listbox span {
+        font-size: 13px;
+}
+
 .mce-panel .mce-btn i.mce-caret {
         border-top: 6px solid #777;
         margin-left: 2px;