html {
  overflow: hidden;
  height: 100%;
  background: #191919;
  width: 100%;
}

#canvas {
  background: url("./images/space.jpg")
    no-repeat;
  width: 100%;
  height: 100%;
  background-size: cover;
}

#canvas.playing {
  cursor: url("./images/aim_red.png")
      17.5 17.5,
    auto !important;
}