Next.js › Styling in Next.js (CSS Modules, Tailwind & Styled Components)

What factors should guide the choice between CSS Modules, Tailwind CSS, and a CSS in JS library for a new large scale Next.js project?

Advanced

Answer

Consider your team's familiarity with each approach, whether you prefer writing traditional CSS or utility classes, how much you value zero runtime overhead which favors CSS Modules and Tailwind over most CSS in JS solutions, and whether you need dynamic runtime styling based on props, which CSS in JS handles more naturally.

// Tailwind: fast utility based styling, no runtime cost
// CSS Modules: familiar CSS syntax, scoped automatically
// CSS in JS: powerful dynamic styling, but adds runtime overhead

Real-world example A large team building a new design system chooses Tailwind CSS for its zero runtime performance cost and consistency, after evaluating it against CSS Modules and a popular CSS in JS library.

Common follow-ups: How does each approach affect the final bundle size of an application?;Can these different styling approaches be mixed within the same project?

Bundle Analysis & Code Splitting;Web Vitals & Performance Monitoring