CSS — Modern Styling Guides & Tools
CSS has evolved dramatically in the last five years. Grid and Flexbox replaced float-based layouts. Custom properties (CSS variables) replaced preprocessor variables. Container queries, cascade layers, and :has() selectors are now widely supported. Keeping up with what's possible — and what actually works cross-browser — is a full-time challenge.
This category covers CSS from practical tips to conversion tools, including how to convert CSS to Tailwind utility classes and to JSON representations for programmatic styling.
Topics Covered
- Modern CSS layout — Grid, Flexbox, container queries, and subgrid
- CSS custom properties — Variables, theming, and design tokens
- CSS-to-Tailwind conversion — How to translate existing CSS rules to Tailwind utility classes
- CSS-to-JSON — Parsing CSS into structured data for programmatic use
- CSS animations & transitions — Keyframes, timing functions, and performance best practices
- Browser compatibility — Feature detection, progressive enhancement, and the current support baseline
Browse the articles below. To convert CSS to Tailwind or JSON format instantly, use the free tools at JS2TS.





