Ticket #21964: 21964.diff

wp-content/themes/twentytwelve/style.css

@@ -1435 +1435 @@
                 padding: 0.571428571rem 0.714285714rem;
                 width: 120px;
                 width: 8.571428571rem;
+                -moz-hyphens: auto;
+                -ms-word-break: break-all;
+                -webkit-hyphens: auto;
+                hyphens: auto;
+                word-break: break-all;
         }
         .main-navigation li ul li a:hover {
                 background: #e3e3e3;