body {
  margin: 0;
  font-family: sans-serif;
  background: #111;
  color: #fff;
  text-align: center;
}

#gameContainer {
  margin: 20px auto;
  border: 2px solid #fff;
  width: 400px;
  background: #222;
}

canvas {
  display: block;
  background: linear-gradient(to top, #444, #000);
  margin: auto;
}

button {
  margin-top: 10px;
  padding: 10px 20px;
  font-size: 16px;
  background: green;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#status {
  font-size: 20px;
  margin: 10px;
}