* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #111;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
}

#game {
  width: 100vw;
  height: 100vh;
}

canvas {
  display: block;
  image-rendering: pixelated;
}