# jdan/98.css

A design system for building faithful recreations of old UIs

Repository: https://github.com/jdan/98.css
Canonical: https://ross.abutalabs.com/products/98css
Homepage: https://jdan.github.io/98.css
Language: CSS
License: MIT
License Family: permissive
Topics: css, design-system, windows98, guy-fieri
Last push: 2025-09-07T13:40:43+00:00

## Health v2 (maintenance only)
Score: 41/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 40, release rhythm 8, longevity 100
- inputs: {"age_days": 2330, "days_push": 360, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 11461, forks 379 (observed 2026-08-28T04:10:48.187115+00:00)

## What it is
98.css is a CSS-only design system that styles semantic HTML to look like the classic Windows 98 user interface. It ships no JavaScript, making it compatible with any frontend framework, and emphasizes accessibility.

## Use cases
- build a retro Windows 98-styled website
- style a web app to look like a vintage operating system
- create a nostalgic UI mockup with CSS
- make semantic HTML look like old Windows dialogs
- add a Win98 theme to a React or vanilla JS project

## When to choose
- you want pixel-faithful Windows 98 aesthetics with pure CSS
- you need a framework-agnostic stylesheet with no JavaScript dependencies
- accessibility via semantic HTML matters to your project

## When to avoid
- you need a modern, production-grade design system
- you want Windows XP or Windows 7 styling instead
- you need JavaScript-powered interactive components out of the box

## Facets
- artifact type: library
- maturity: stable
- function: css-framework, ui-components, theme
- domain: web-development, frontend, web-design
- platform: browser, cross-platform
- tags: windows-98, retro-ui, design-system, css-library, no-javascript, accessible, semantic-html, web-server, nodejs

## Member repositories
- jdan/98.css (main) score 41

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:48.187115+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 2026-08-29T17:15:34.611506+00:00, confidence not recorded.
  - readme: https://github.com/jdan/98.css (fetched 2026-08-28T04:10:48.187115+00:00, sha 0b209f55862f)
  - homepage: https://jdan.github.io/98.css (fetched 2026-08-29T08:14:14.285702+00:00, sha 65420167b1da)
- Data as of 2026-08-30T08:39:29.467469+00:00.