body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(to bottom, #70c5ce, #ffffff);
}

h1 {
  margin: 10px 0;
  color: #333;
}

canvas {
  border: 2px solid #333;
  background: #aeeff0;
  display: block;
}