body{padding:0;margin:0;background-color:#000000;} .advise{position:relative;position: relative; left: 50%;transform: translateX(-50%);top:20px;width:90%;max-width:400px;text-align:center;z-index:10;} .playvid{width:100%;max-width:1800px;height:auto;margin:3em auto;padding-bottom:3em;}