body {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: black;
  flex-direction: column;
}

canvas {
  display: block;
  background: black;
  border: 2px solid white;
}

#footer {
  color: white;
  font-size: 14px;
  margin-top: 8px;
  text-align: right;
  width: 800px;
}