CSS vs SCSS
Differences, use cases, and when to use each
CSS is the native browser styling language. SCSS (Sassy CSS) is a CSS preprocessor superset that adds variables, nesting, mixins, and functions. SCSS compiles to standard CSS before delivery to browsers.
Quick Comparison
| Feature | CSS | SCSS |
|---|---|---|
| Variables | CSS custom properties (--color: red) | Native variables ($color: red) |
| Nesting | Not supported natively | Full nesting support |
| Mixins | Not supported | Reusable style blocks |
| Browser Support | Direct (no compilation) | Requires compilation step |
| Functions | calc(), clamp(), etc. | Custom functions + all CSS functions |
When to Use Each
When to Use CSS
Use plain CSS for simple projects, small stylesheets, or when you want zero build tooling. Modern CSS with custom properties handles many use cases previously requiring SCSS.
When to Use SCSS
Use SCSS for large projects with shared design tokens, component-heavy architectures, and teams where nesting and mixins improve organization and reduce repetition.
Pros & Cons
CSS
SCSS
Verdict
SCSS for large, complex stylesheets. Plain CSS for simple projects or when using utility-first frameworks like Tailwind. Modern CSS has narrowed the gap with native nesting and custom properties.