html, body {
  background-color: black;

  padding: 0;
  margin: 0;
  overflow: hidden;

  text-align: center;

  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  overscroll-behavior-x: contain;
}

canvas {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -o-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  image-rendering: pixelated;
  width: 100%;
  height: 100%;
}