Ticket #31261: 31261.patch

src/wp-admin/css/edit.css

@@ -123 +123 @@
         width: 16em;
 }
 
+#post_name {
+        width: 100%;
+        margin: 6px 0 0;
+}
+
 .postarea h3 label {
         float: left;
 }