html, body {
  margin: 0; padding: 0;
  height: 100%;
  background: #0a0c18;
  overflow: hidden;
}
main {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
#game {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #0a0c18;
  outline: none;
}
.ns {
  color: #aab3d8;
  font-family: monospace;
  text-align: center;
}