#game {
  width: 200vw;
  height: 112.5vw;
  max-height: 100vh;
  max-width: 133.33vh;
  margin: auto;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
}

#myCanvas {
  width: 100%;
  height: 100%;
  margin: auto;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  border: 1px solid;
  border-radius: 10px;
  border-color: #c3c3c3;
}