:root { --highlight: #ddd; --background: #222; --tile-width: 484px; } body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif; color: var(--highlight); background-color: var(--background); } select:disabled { display: none; }