body .video_con .video_con_in{width: 400px;height: 700px;}
@media screen and (max-width: 991px){
    body .video_con .video_con_in{width: 48%;height: 85vw;}
}
@media screen and (max-width: 500px){
    body .video_con .video_con_in{width: 88%;height: 155vw;}
}