.sixScreen{
    background-color: #ffffff;
    overflow:scroll;
}
.sixBox{
    width: 1200px;
    height: 900px;
    margin: 10px auto;
    margin-bottom: 0;
    background-size: 100%;
    background-repeat: no-repeat;
    background-image: url(http://qiniuimage.shengyaapp.com/H5/image/enterpriseWebsite/6/%E5%BA%95%E9%83%A8%E8%83%8C%E6%99%AF%20%E6%8B%B7%E8%B4%9D%204.png);
    padding-top: 1px;
}

.sixBox > img{
    display: block;
}
.gywm{
    width: 550px;
    height: 450px;
    margin: 70px auto;
    margin-bottom: 90px;
    opacity: 0;
}
.xzsy{
    width: 150px;
    height: 220px;
    margin: 0 auto;
    opacity: 0;
}