html, body {
  overflow: hidden;
  margin: 0;
  background-color: #000;
}

.instructions {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  letter-spacing: 2px;
  pointer-events: none;
}

canvas {
  width: 100%;
}