.li_1{text-align:center;margin-top:90px;}.mainConten1{text-align:center;border-bottom:#C7DC41 solid 1px;margin:10px;height:100px;}.mainframe .left{border:#3975CE 1px solid;float:left;width:183px;}.ftitle{margin:0 10px;}.flashs{width:180px;height:310px;margin:5px;    margin-bottom: 100px;}