body,html,#index-ad{
    height: 100%;
    width: 100%;
}
#index-ad{
    display: none;
    background-image: url("https://v.gxnews.com.cn/images/gg/2018/2018qglh.jpg");
    background-size: 100%;
    background-position: center top;
}
#idx-hd {
    border-bottom: 2px solid #ff1c10;
}