* {
  margin: 0;
  padding: 0;
}
body,
html {
  background: #000;
  height: 100%;
  overflow: hidden;
}
canvas {
  height: 100%;
  width: 100%;
  object-fit: contain;
}
canvas.sharp {
  image-rendering: pixelated;
}
.halfWidth {
  width: 50%;
}