.mainWrapper{-webkit-box-sizing:border-box!important;box-sizing:border-box!important}.articleMeauleft{width:20%;padding:0 1%;min-height:700px;background:#fff;float:left;margin-top:24px}.articleMainRight{width:80%;float:right}.courseClass{padding-left:10px}.courseClass span{font-size:14px;line-height:2.5;cursor:pointer}