CSS Custom Properties, commonly known as CSS Variables, have revolutionized how we handle design systems. Gone are the days of needing a heavy SASS/LESS pre-processor just to change a theme color.

Why CSS Variables?

Unlike pre-processor variables, CSS custom properties are dynamic. They live in the browser’s DOM, meaning they can be updated in real-time with JavaScript or media queries without requiring a re-build.

Example Usage

:root {
  --primary: #00ff85;
}

.button {
  background: var(--primary);
}

Performance Advantage

By using native CSS variables, you reduce the size of your CSS bundles. Instead of declaring redundant hex codes throughout your files, you reference a single token. This makes your site faster to load and easier to maintain.

Conclusion

Modern CSS is powerful enough to handle almost all design requirements. Embrace native features for a cleaner, faster web.