*{box-sizing:border-box}html,body{touch-action:manipulation;-webkit-user-select:none;user-select:none;background:#0d0e12;width:100%;height:100%;margin:0;padding:0;overflow:hidden}#app{z-index:1;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:relative}#app canvas{max-width:100%;max-height:100%}