body{margin:0;padding:0;background-color:#000}#mainContainer{position:relative;width:100vw;height:100vh}#content{position:absolute;top:0;left:0;width:100vw;height:100vh}#contentElement{width:100vw;height:100vh;overflow:hidden}#playButton{margin-top:10px;vertical-align:top;width:350px;height:60px;padding:0;font-size:22px;color:#fff;text-align:center;text-shadow:0 1px 2px rgba(0,0,0,.25);background:#2c3e50;border:0;border-bottom:2px solid #22303f;cursor:pointer;-webkit-box-shadow:inset 0 -2px #22303f;box-shadow:inset 0 -2px #22303f}#adContainer{position:absolute;top:0;left:0;width:100vw;height:100vh}