*{margin:0;padding:0;box-sizing:border-box}#app,body,html{height:100%}body{background:#000;font-family:sans-serif}#canvas{width:100%;height:100%;-o-object-fit:contain;object-fit:contain;-o-object-position:center;object-position:center}.countdown{position:fixed;bottom:0;left:0;height:1rem;background:purple}.msg{position:fixed;bottom:2rem;left:1rem;font-size:2rem;color:#0f0;font-weight:700}