.banner{width:100%}.banner img{width:100%;display:block}.container{width:1140px;margin:0 auto}.title{text-align:center;font-size:24px;padding-top:50px;padding-bottom:20px}.title span{border-top:1px solid black;border-bottom:1px solid black}.case_list{width:100%;overflow:hidden}.case_item{width:358px;height:248px;border:1px solid #bbbaba;margin:10px;float:left;behavior:url(/templates/default/js/PIE.htc);background:white}.case_item:hover{box-shadow:0 0 15px 0.75px #ccc}.case_item_img{position:relative;width:340px;height:230px;margin:9px;overflow:hidden}.case_item_img img{width:340px;height: 230px;}.case_item_img:hover .case_item_mask{opacity:1;background:#000 \9;filter:alpha(opacity=60)}.case_item_img:hover .case_item_mask b{position:relative}.case_item_mask{-moz-transition:all .3s ease;-o-transition:all .3s ease;-webkit-transition:all .3s ease;transition:all .3s ease;position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;background:rgba(0,0,0,0.6);background:#000 \9;filter:alpha(opacity=0)}.case_item_mask b{line-height:300px;font-size:18px;color:white;display:block;text-align:center}