#preview{margin:0 auto;text-align:center;width:720px;height:700px;}
#spec-n1{margin:0 auto;width:720px;text-align:center;height:auto;padding:0;overflow:hidden;}
.zr{width:140px;height:50px;padding:0 300px;overflow:hidden;}
#spec-left{background:url(images/left.gif) no-repeat;width:35px;height:51px;float:left;cursor:pointer;margin:0 10px;}
#spec-right{background:url(images/right.gif) no-repeat;width:35px;height:51px;float:left;cursor:pointer;margin:0 10px;}
#spec-n5{float:left;width:720px;height:190px;padding-top:36px;overflow:hidden;display:inline;margin:0;}
#spec-list{float:left;width:720px;overflow:hidden;margin:0;display:inline;}
#spec-list ul{float:left;list-style:none;margin:0;padding:0;width:720px;height:auto;overflow:hidden;display:inline;}
#spec-list ul li{float:left;margin:0;width:240px;display:inline;}
#spec-list ul li img{padding:2px;border:1px solid #ccc;width:220px;height:160px;}