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

canvas {
  display: block;
  position: fixed;
  left: 50%;
  top: 50%;
  width: 240px !important;
  height: 160px !important;
  image-rendering: pixelated;
  transform-origin: center;
  outline: none;
}