html, body { transition: 0.3s; padding: 0; margin: 0; font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif; } a { color: inherit; text-decoration: none; } * { box-sizing: border-box; } @media (prefers-color-scheme: dark) { html { color-scheme: dark; } body { transition: 0.3s; color: white; } }