# airbnb/css

A mostly reasonable approach to CSS and Sass.

Repository: https://github.com/airbnb/css
Canonical: https://ross.abutalabs.com/products/css
License: MIT
License Family: permissive
Last push: 2024-06-04T00:44:40+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4083, "days_push": 821, "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 6974, forks 1392 (observed 2026-08-28T04:09:51.832993+00:00)

## What it is
Airbnb's styleguide documenting a mostly reasonable approach to writing CSS and Sass, covering formatting, selectors, OOCSS/BEM, and Sass best practices. The repository has been archived and is no longer maintained by Airbnb.

## Use cases
- how should I format my CSS rule declarations
- airbnb css style guide recommendations
- when to use ID selectors in CSS
- best practices for writing Sass
- how to structure BEM class names
- ordering of Sass property declarations

## When to choose
- you want a well-known reference for CSS/Sass conventions
- you are establishing a team CSS styleguide and want a starting point
- you are learning CSS/Sass formatting and BEM conventions

## When to avoid
- you need an actively maintained styleguide reflecting modern CSS practices
- you need tooling or linters rather than prose guidelines
- your team has moved to CSS-in-JS or utility-first approaches

## Facets
- artifact type: learning-resource
- maturity: abandoned
- function: css-framework, documentation
- domain: web-development, frontend, web-design, tutorials
- platform: -
- tags: styleguide, css, sass, code-style, archived, airbnb, web-server

## Member repositories
- airbnb/css (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:51.832993+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 2026-08-29T17:41:09.717406+00:00, confidence not recorded.
  - readme: https://github.com/airbnb/css (fetched 2026-08-28T04:09:51.832993+00:00, sha 65f0775131fb)
- Data as of 2026-08-30T08:39:29.467469+00:00.