* { padding:0}
.sm {list-style:none; width:500px; height:210px; display:block; overflow:hidden; margin-top:80px;}
.sm li {float:left; display:inline; overflow:hidden; height:216px;}
.sm li a img { border:1px solid white;}
.sm li a:hover img { border:1px solid black;}
/*.sm li img { border: 1px solid #000;}*/