html,body{width:100%;height:100%;margin:0;padding:0;background:#000;overflow:hidden}#app{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}canvas{display:block;width:100%!important;height:100%!important;max-width:100vw;max-height:100vh;object-fit:contain;touch-action:none}