.tanimg {
    position: fixed;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    background: rgba(0,0,0,0.7);
    z-index: 9100;
    display: none;
}
.tanimg .video_windown {
    position: absolute;
    width: calc(50% - 150px);
    height: auto;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.tanimg .video_windown .img_content {
    width: 100%;
}
.tanimg .video_windown .img_content video {
    width: 100%;
    height: 100%;
}
.tanimg .video_windown .shup {
    position: absolute;
    width: 40px;
    height: 40px;
    right: 0px;
    top: -35px;
    text-align: right;
}