body,
html {
  width: 100%;
  height: 100%;
  margin: 0;
}

canvas {
  border: 1px solid black;
  box-shadow: 0px 0px 25px 5px black;
  touch-action: pan-y;
}

#container {
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}