#video_ad_box{overflow:hidden;padding-bottom:57%;position:relative;height:0;line-height: 100%;background:#000}
#ad_video #video_player, #ad_video #mp_poster, #ad_video #ad_click_box {left:0;top:0;height:100%;width:100%;position:absolute;}
#video_ad_box img {max-width: 100%;width: 100%;max-height: 150px;}
#video_player {width:400px;height:225px;background-color:transparent;}
#mp_block {position:absolute;top:0px;width:400px;height:225px;cursor:pointer;z-index:999;}
#video_ad_time {position:absolute;bottom:10px;right:70px;z-index:500;color:rgba(255, 255, 255, 0.8);font-size:15px;display:none;}
.btn-open_close {position:absolute;top:0;right:0;width:100px;z-index:500;color:#fff;background-color:rgba(0, 0, 0, 0.7);text-align:center;cursor:pointer;line-height:36px}
#video_btn_close.btn-open_close {background:rgba(255, 255, 255, 0.7);}
.btn-open_close:hover{text-decoration:none;color:#fff}
#video_btn_vol {position: absolute;bottom: 80px;right: 10px;z-index: 500;text-align: right;cursor: pointer;display: none;font-size: 20px;color: #fff;border: 1px solid;padding: 0px 10px;} 
.sm_banner_click {display:block;}
 

@media only screen and (min-width: 768px) {
#video_ad_box{overflow:hidden;padding-bottom:0% !important;position:relative;height:0;line-height: 100%;background:#000}
#video_ad_box.open{min-height:540px !important;}
/*#ad_video #video_player, #ad_video #mp_poster, #ad_video #ad_click_box {left:calc(calc(100% - 480px) / 2);top:0;height:360px;width:480px;position:absolute;}*/
#video_ad_box img {max-width: 100%;width: auto;max-height: 300px;}
#video_player {width:400px;height:225px;background-color:transparent;}
#mp_block {position:absolute;top:0px;width:400px;height:225px;cursor:pointer;z-index:999;}
#video_ad_time {position:absolute;top:7px;right:140px;z-index:500;color:rgba(255, 255, 255, 0.8);font-size:15px;display:none;}
.btn-open_close {position:absolute;top:0;right:0;width:100px;z-index:500;color:#fff;background-color:rgba(0, 0, 0, 0.7);text-align:center;cursor:pointer;line-height:36px}
#video_btn_close.btn-open_close {background:rgba(255, 255, 255, 0.7);}
.btn-open_close:hover{text-decoration:none;color:#fff}
#video_btn_vol {position: absolute;bottom: 80px;right: 10px;z-index: 500;text-align: right;cursor: pointer;display: none;font-size: 20px;color: #fff;border: 1px solid;padding: 0px 10px;} 
.sm_banner_click {display:block;text-align:center;}
}