.first{border-style:solid;border-width:0px 0px 0px 1px;border-color:#fff #fff #c2c2c2 #e5e8ed;}
.first .cate,.first .main,.first .extra{float:left;background-color:#fff;border-right:1px solid #e5e8ed;border-bottom:1px solid #c2c2c2 ;}
.first .main, .first .extra{margin-top:15px;height:494px;}
.first .cate{width:238px;height:508px;padding-top: 1px;}
.first .main{width:710px;}
.first .extra{width:238px;}
.first .tab-banner{height:350px;border-bottom:1px solid #e5e8ed;position:relative;}