* {
  box-sizing: border-box;
}

:root {
  --bg-black: #1a1a1a;
  --bg-msgrey: #c6c6c6;
  --bg-greygreen: rgb(112, 121, 110);
  --border-inset-grey: 3px inset #c6c6c6;
  --border-outset-grey: 3px outset #c6c6c6;
}

html, body {
  background: white;
}

canvas {
  display: block;
  background: black;
  max-width: 100%;
  max-height: 100%;
}