.box-video__video{position:relative}.box-video__video__btn{background:#fff;width:48px;height:48px;z-index:2;border-radius:50%;position:absolute;left:50%;top:50%;-webkit-transform:translate(-50%, -50%);transform:translate(-50%, -50%)}.box-video__video__btn:after{content:"";width:0px;height:0px;border-top:9px solid rgba(0,0,0,0);border-bottom:9px solid rgba(0,0,0,0);border-left:13px solid #00b0f0;position:absolute;left:55%;top:50%;-webkit-transform:translate(-50%, -50%);transform:translate(-50%, -50%)}