.topList?{
????width:300px;
????height:180px;
????border:1px?solid?#E8E8E8;
????margin:0?auto;
}
.topList?ul{
????list-style-type:none;
????font-size:12px;
????padding:10px;
????margin-top:-6px;
}
.topList?li{???
????margin:3px?0;//使用padding:1px?0;也距離太多，使用margin?則無變化
}
.topList?em{
????display:block;
????width:20px;
????height:16px;
????text-align:center;
????font-style:normal;
????color:#333;
????background:url("http://img1.sycdn.imooc.com//53cf0fa20001d3dc00200032.jpg")?no-repeat;
????background-position:0?-16px?;
????float:left;
}
.topList?.top?em{
????background-position:0?0px;
}
.topList?ul?a:link,.topList?ul?a:visited{
????text-decoration:none;
????color:#000;
}
.topList?ul?a:hover,.topList?ul?a:activve{
????color:red;
}