#cborder:before,#cborder>:first-child:before{position:absolute;content:' ';width:20px;height:20px;border-color:black;border-style:solid}#cborder:before{top:0;left:0;border-width:1px 0 0 1px}#cborder>:first-child:before{bottom:0;right:0;border-width:0 1px 1px 0}#top-menu li{text-transform:none}