*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;overflow:hidden;background:#1c1e26;font-family:Courier New,ui-monospace,Menlo,Consolas,monospace}body{display:flex;align-items:center;justify-content:center;min-height:100vh}#game-container{position:relative;width:100%;height:100%}#game-container canvas{display:block;margin:0 auto}