body{margin:0;padding:0;color:rgba(255,255,255,.87);background-color:#000000;font-family:Arial,Helvetica,sans-serif;overflow:hidden}#app{height:100vh;overflow:hidden}#app,#game-container{width:100%;display:flex;justify-content:center;align-items:center}#game-container{height:100%}#game-container canvas{display:block}