.topbg {
    width: 100%;
    height: 280px;
    background: none;
    position: relative;}
.kzks{       margin-bottom: 20px; width: 100%;
    height: 200px;
    overflow-x: auto;}
.kzks li {
    float: left;
    width: 147px;
    padding: 10px 20px;
    background-color: #2d43b1;
    margin: 5px;
    text-align: center;}

    .kzks li a {
        color: #fff;}