html,body,ul,li{padding:0;margin:0}html,body{width:100%;height:100%;overflow:hidden;background-color:#fff}body{background-image:url("sirkus.png");background-repeat:no-repeat;background-position:center center;background-size:50% auto}ul{width:100%;height:100%;overflow:hidden;list-style:none}ul li{display:none;width:100%;height:100%;overflow:hidden;background-color:#fff;background-repeat:no-repeat;background-position:center center;background-size:contain}ul li.visible{display:block}video{width:100%;height:100%;object-fit:cover;overflow:hidden}