body {
  background: linear-gradient(to bottom, #ccc, #999);
  height: 100vh;
}

.canvas {
  border-radius: 4px;
  box-shadow: 0 16px 20px -8px rgba(0, 0, 0, 0.9);
  height: 500px;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
  width: 500px;
}

.info {
  bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  border-top-right-radius: 4px;
  color: white;
  font-family: monospace;
  font-size: 16px;
  font-style: italic;
  left: 0;
  padding: 4px 8px;
  position: fixed;
}