html, body {
  height: 100%;
  margin: 0;
  background: #000;
  color: #c8c8c8;
  font-family: "Courier New", monospace;
  overflow: hidden;
  user-select: none;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

#frame {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

canvas#screen {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
  background: #000;
  display: block;
  box-shadow: 0 0 0 2px #222, 0 0 24px #000 inset;
}

#hint {
  font-size: 12px;
  color: #666;
  letter-spacing: 1px;
  text-transform: uppercase;
}