# MicheleBertoli/css-in-js

React: CSS in JS techniques comparison

Repository: https://github.com/MicheleBertoli/css-in-js
Canonical: https://ross.abutalabs.com/products/css-in-js
Homepage: http://michelebertoli.github.io/css-in-js/
Language: JavaScript
License: MIT
License Family: permissive
Topics: cssinjs, css-in-js
Last push: 2024-04-02T05:36:49+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4118, "days_push": 883, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5476, forks 278 (observed 2026-08-28T04:09:19.665217+00:00)

## What it is
A comparison repository showcasing CSS-in-JS techniques and libraries for React, with a feature matrix covering vendor prefixing, pseudo classes, media queries, object literal styles, and CSS file extraction. It includes runnable example packages for dozens of CSS-in-JS solutions like aphrodite, emotion, styled-components, and radium.

## Use cases
- compare css-in-js libraries for react
- which css in js solution supports css file extraction
- find a styling library with media query support
- learn css in js techniques
- evaluate styled-components vs emotion vs jss
- demo css in js approaches side by side

## When to choose
- you are evaluating which CSS-in-JS library fits your React project's needs
- you want runnable examples of many styling approaches
- you need a feature matrix of pseudo class, media query, and extraction support

## When to avoid
- you need a production styling library rather than a comparison resource
- you work outside React or with plain CSS tooling
- you need up-to-date library versions, as the matrix may lag current releases

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: css-framework, frontend-framework, developer-tools
- domain: web-development, frontend, web-design, tutorials
- platform: cross-platform
- tags: css-in-js, react, comparison, styling, reference, web-server, nodejs

## Member repositories
- MicheleBertoli/css-in-js (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:19.665217+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:56:42.570803+00:00, confidence not recorded.
  - readme: https://github.com/MicheleBertoli/css-in-js (fetched 2026-08-28T04:09:19.665217+00:00, sha acd9d6e7c2dc)
  - homepage: http://michelebertoli.github.io/css-in-js/ (fetched 2026-08-29T08:51:53.569967+00:00, sha 8ffcd32418e3)
- Data as of 2026-08-30T08:39:29.467469+00:00.