html,body{margin:0;padding:0;background:gold;width:100vw;height:100vh}body,#app{display:flex;justify-content:center;align-items:center}#app canvas{box-shadow:0 0 3px 8px orange;position:relative;width:min(100vw,calc(100vh * 16/9));cursor:pointer;background-color:transparent;image-rendering:pixelated}