.szdw-list ul li:hover {
    background-color: #f2f2f2;}
    
    .szdw-list ul li {
    width: 280px;
    height: 160px;
    float: left;
    background-color: #f2f2f2;
    margin-right: 35px;
    margin-top: 80px;}
    .szdw-list ul li div{    width: 155px;
    height: 20px;
    margin-top: 10px;
    margin-right: 0;
    float: none;
    text-align: center;}