.adapt {position:relative;padding-bottom:56.25%;padding-top:30px;height:0;overflow:hidden;border:0;border-bottom:2px solid #fff}
.adapt iframe {position:absolute;top:0;left:0;width:100%;height:100%;}
.video .prewlist .prew {display:inline-block;overflow:hidden;width:120px;height:90px;margin:0;padding:0;vertical-align: top;}
.video .prewlist .prew img {opacity:0.6;}
.video .prewlist .prew:hover {cursor: pointer;}
.video .prewlist .prew:hover img, .video .prewlist .prew.active img {opacity:1;}