*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background:#0f0f1a;width:100%;height:100%;overflow:hidden}#game-container{justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;position:fixed;top:0;left:0}#game-container canvas{width:auto;max-width:100vw;height:auto;max-height:100vh;margin:0 auto;display:block}