* {margin:0; padding:0}
.sm {list-style:none; width:725px; height:400px; display:block; overflow:hidden;border:0px solid red}
.sm li {float:left; display:inline; overflow:hidden; border-right:none}

.sm2 {list-style:none; width:724px; height:50px; display:block; overflow:hidden;border:0px solid red;margin-top:15px}
.sm2 li {float:left; display:inline; overflow:hidden; border-right:none}