div.eg1 {border:solid #9cf;
         border-width:10px; border-top-width:40px;
         margin:10px; background:#eee;}

div.eg2 {border:solid #9c6;
         border-width:10px; border-right-width:80px;
         margin:10px; background:#eee;}

div.eg3 {border:solid #9cf;
         border-width:10px; border-bottom-width:40px;
         margin:10px; background:#eee;}

div.eg4 {border:solid #9c6;
         border-width:10px; border-left-width:80px;
         margin:10px; background:#eee;}