/* 화면 가운데에 16:9 캔버스 하나 */
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: #000;
  overflow: hidden;
}
body {
  display: flex;
  align-items: center;
  justify-content: center;
}
#game {
  display: block;
  background: #000;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  outline: none;
}
noscript {
  color: #ccc;
  font-family: sans-serif;
}