html,body{margin:0;padding:0;background:#1d2b53;width:100vw;height:100vh}body,#app{display:flex;justify-content:center;align-items:center}#app .content{position:relative;box-shadow:0 0 2px 2px #000;width:min(100vw,calc(100vh * 16/9));aspect-ratio:16/9;cursor:pointer;cursor:none}#app canvas{position:absolute;top:0;left:0;width:100%;height:100%;background-color:transparent}