body {
  font-family: sans-serif;
  text-align: center;
  margin: 0;
  background-color: #f0f0f0;
}

canvas {
  background-color: #87CEEB;
  display: block;
  margin: 20px auto;
  border: 2px solid #000;
}

button {
  padding: 10px 20px;
  font-size: 18px;
  cursor: pointer;
  border-radius: 8px;
  border: none;
  background-color: #0a74da;
  color: white;
  margin-top: 20px;
}

button:hover {
  background-color: #055aaa;
}