back css...
border-style: atas kanan bawah;
border-style: solid double dotted none;
border-width: 10px;
border-color: red;
border-style: solid;
border-width: 10px 15px 20px 0px;
border-color: red;
border-style: solid;
border-width: 10px;
border-color: blue red green white;