By language

Top CSS projects

The most-starred MIT projects written mainly in CSS.

How it's ranked: Sorted by GitHub stars, using GitHub's primary-language detection. Data from GitHub as of 2026-11-02.

1. 1normalize.cssA small CSS file that makes browsers display basic HTML elements more consistently.necolas · CSS★ 53.5k
2. 2BulmaA CSS framework built on Flexbox that gives you styled layout and UI classes.jgthms · CSS★ 50k
3. 3HallmarkA design skill that makes AI coding assistants build web pages that don't look machine-made.Nutlope · CSS★ 45.5k
4. 450projects50daysA course repo of 50+ small HTML, CSS and JavaScript mini-projects for learning front-end basics.bradtraversy · CSS★ 40.6k
5. 5SkeletonA small, plain CSS starting point for responsive, mobile-friendly web pages.dhg · CSS★ 19.3k
6. 6SpinKitA set of CSS-only animated loading spinners you can copy into a web page.tobiasahlin · CSS★ 19.3k
7. 7PaceA script that adds an automatic loading progress bar to any web page.CodeByZach · CSS★ 15.6k
8. 8RatchetA small set of HTML, CSS and JavaScript components for building mobile-style web apps.twbs · CSS★ 14.7k
9. 9Solved by FlexboxA web showcase of CSS layout problems that Flexbox now solves easily.philipwalton · CSS★ 12.9k
10. 10deviconA free set of logo icons for programming languages and developer tools, as a font or SVGs.devicons · CSS★ 11.9k
11. 11TachyonsA small, utility-class CSS library for building layouts without writing custom CSS.tachyons-css · CSS★ 11.7k
12. 1298.cssA CSS stylesheet that makes plain HTML look like Windows 98 interface elements.jdan · CSS★ 11.6k
13. 13Spectre.cssA small CSS framework with ready-made styles, a flexbox grid, and components for web pages.picturepan2 · CSS★ 11.3k
14. 14SeekerHosts a fake page that asks visitors for location permission, then reports their coordinates and device detailthewhiteh4t · CSS★ 10.2k
15. 15PhotonA CSS toolkit for building desktop-style app interfaces with Electron.connors · CSS★ 10.1k