.contbox .tab{width: 100%;height: 38px;background-color: #f9f9f9;border-top: 2px solid #ececec;}
.contbox .tab a{float: left;padding: 0 20px;height: 40px;margin-top: -2px;font-size: 16px;color: #666;line-height: 40px;}
.contbox .tab a:hover{color: #f50;}
.contbox .tab a.active{background-color: #ff9500;color: #fff;}
.contbox ul{margin: 0;width: 100%}
.contbox .txtlist{margin: 0;padding: 18px 0 18px 15px;border-bottom: 1px dotted #ddd;width: 100%;}
.contbox .dot3{background-position: 0 -23px;}
.contbox .txtlist .down{float: right;width: 68px;height: 23px;border: 1px solid #20da9b;color: #20da9b;line-height: 23px;text-align: center;margin-top: -4px;}
.contbox .txtlist .down:hover{color: #fff;background-color: #20da9b;}
.contbox .box{display: none}
.contbox .show{display: block}