.adv1{
    background-color: red;
    width: 336px;
    height: 280px;
}
.adv2{
    background-color: red;
    width: 336px;
    height: 280px;
}
.adv3{
    background-color: red;
    width: 336px;
    height: 280px;
}
.adv4{
    background-color: red;
    width: 970px;
    height: 90px;
}
.adv5{
    background-color: red;
    width: 970px;
    height: 250px;
}
.adv6{
    background-color: red;
    width: 320px;
    height: 480px;
}
.adv7{
    background-color: red;
    width: 160px;
    position: absolute;
    top: 0;
    right: -250px;
}

/* 测试用 */
.adv1-test{
    width: 336px;
    height: 280px;
    background-color: red;
    margin: 20px auto 20px auto;
}
.adv2-test{
    width: 336px;
    height: 280px;
    background-color: red;
    margin: 20px auto 20px auto;
}
.adv3-test{
    width: 336px;
    height: 280px;
    background-color: red;
    margin: 20px auto 20px auto;
}
.adv4-test{
    width: 970px;
    height: 90px;
    background-color: red;
    margin: 20px auto 40px auto
}
.adv5-test{
    width: 970px;
    height: 250px;
    background-color: red;
    margin: 20px auto 20px auto
}
.adv6-test{
    background-color: red;
    width: 320px;
    height: 480px;
    margin: auto
}
.adv7-test{
    width: 160px;
    height: 600px;background-color: red;
    position: absolute;
    top: 0;
    right: -250px;
}