.header_TopAd{
    position: relative;
    overflow: hidden;
    width: 100%;
    text-align: center;
}
.header_TopAd_close{
    position: absolute;
    top: 0;
    right: 14px;
    padding-left: 22px;
    width: 34px;
    height: 20px;
    line-height: 20px;
    font-size: 12px;
    color: #fff;
    background: rgba(0, 0, 0, .4);
    z-index: 1;
    cursor: pointer;
    user-select: none;
    border-bottom-right-radius: 4px;
    border-bottom-left-radius: 4px;
}
.header_TopAd_close>i{
    position: absolute;
    left: 5px;
    top: 50%;
    margin-top: -4px;
    width: 14px;
    height: 8px;
    background: url('/statics/widgets/siteIndexTopAd/images/header_top_ad_close.png') no-repeat center center;
    transition: transform .1s;
}
.header_TopAd_close.down>i{
    transform: rotate(180deg);
}
.header_TopAd_big,
.header_TopAd_small{
    display: none;
    height: 0;
    overflow: hidden;
    position: relative;
}
.header_TopAd_big.show,
.header_TopAd_small.show{
    display: block;
}
.header_TopAd_big img,
.header_TopAd_small img{
    display: block;
    margin: 0 auto;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}
.header_TopAd_big{
    height: 300px;
}
.header_TopAd_small{
    height: 48px;
}