.prod-tag{ margin: 40px auto 50px; }
.prod-tag ul{margin:0;padding:0;list-style:none;overflow:hidden}
.prod-tag li{float:left;width:360px;height:338px;background-color:#fff;margin:0 20px 12px 20px;overflow:hidden;position:relative; box-shadow: -5px 0px 5px rgba(0, 0, 0, .05),0px 5px 5px rgba(0, 0, 0, .05),5px 5px 5px rgba(0, 0, 0, .05);}
.prod-tag li a{display:block;font:14px/24px "Microsoft Yahei"}
.prod-tag li span.txt{position:absolute;top:225px;left:9%;width:82%; text-align:center;line-height:24px; font-size:13px; color:#333;z-index:3}
.prod-tag li span.txt b{color:#0e4424;font-size:17px;line-height:40px;font-weight:normal;display:block}
.prod-tag li a:hover span.txt{color:#fff;top:50%;margin-top:-50px;left:9%;text-align:center;font-size:13px;width:82%}
.prod-tag li a:hover span.txt b{color:#fff;font-size:17px;line-height:40px; margin-bottom: 7px; border-bottom: 1px solid #fff;}
.prod-tag li span.bg{background-color:#0e4424;filter:alpha(opacity=80);opacity:.8;position:absolute;width:100%;height:100%;z-index:2;display:none;top:0;left:0}
.prod-tag li:hover img{margin:50px auto 0 auto}
.prod-tag li img{width:230px;display:block;margin:10px auto 0 auto}
.prod-tag .li3 li:nth-child(3n){margin-right:0}