body {
  display: flex;
  justify-content: center;
  background: black;
  color: white;
}

canvas {
  background: black;
}

controls {
  display: block;
}

box {
  display: flex;
  flex-direction: column;
}

input, label {
  display: flex;
  width: 50%;
  align-self: center;
}