CSS, marked
Every repository here has at least 1,000 stars and was marked against the same scheme. Curated lists, books, and tutorials are marked separately and left out, since asking whether an agent can install a list of links means nothing.
The class as a whole
873
repositories marked
63
median mark out of a hundred
37%
have no test command an agent can find
35%
ship an AGENTS.md
Seeded from the 864 most-starred repositories on 25 August 2026 and re-marked since. Figures current to 10 October 2026.
| Repository | MD | Language | Added | Stars | Mark | ||
|---|---|---|---|---|---|---|---|
| 1 | jgthms/bulma Modern CSS framework based on Flexbox | · | CSS | 25 Aug | 50k | 60 | B- |
| 2 | animate-css/animate.css 🍿 A cross-browser library of CSS animations. As easy to use as an easy thing. | · | CSS | 25 Aug | 83k | 45 | C |
| 3 | FreeCodeCampChina/freecodecamp.cn FCC China open source codebase and curriculum. Learn to code and help nonprofits. | · | CSS | 25 Aug | 38k | 44 | C |
| 4 | ryanoasis/nerd-fonts Iconic font aggregator, collection, & patcher. 3,600+ icons, 50+ patched fonts: Hack, Source Code Pro, more. Glyph collections: Font Awesome, Material Design Icons, Octicons, & more | · | CSS | 25 Aug | 65k | 41 | C |
| 5 | necolas/normalize.css A modern alternative to CSS resets | · | CSS | 25 Aug | 54k | 41 | C |
| 6 | isocpp/CppCoreGuidelines The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++ | · | CSS | 25 Aug | 45k | 32 | D |
| 7 | bradtraversy/50projects50days 50+ mini web projects using HTML, CSS & JS | · | CSS | 25 Aug | 41k | 27 | F |
Mark yours.
Two API calls. Nothing cloned, nothing executed, no account.