body {
  font-family: monospace;
  margin: 0;
  font-size: 1.3rem;
  font-weight: normal;
}

canvas {
  display: block;
}

#webgl-error-message {
  text-align: center;
  background: #fff;
  color: #000;
  padding: 1.5em;
  width: 400px;
  margin: 5em auto 0;
}