* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .banner img {
            width: 100%;
        }
        .contentBox {
            width: 80%;
            margin: 0 auto;
            margin-top: 60px;
            display: flex;
            justify-content: space-evenly;
            padding-bottom: 50px;
        }

        .contentImg {
            width: 40%;
        }

        .contentBox a {
            display: block;
            width: 100%;
        }

        .contentBox img {
            width: 100%;
        }

        .contentTitle {
            color: #000;
            display: block;
            text-align: center;
            margin-top: 20px;
            font-size: 18px;
            height: auto !important;
        }
        .zhanwei{
           width:100%;
           height:50px
        }