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View guide →// agents · master-co/css
css
css is an open-source agents project by master-co (master-co/css on GitHub). It has 1,948 GitHub stars and 44 forks, is released under the MIT license, and was last updated on GitHub on 3 October 2026.
A markup-driven CSS orchestration language for developers and AI agents.
💎 Hidden gem★ 1.9k stars⑂ 44 forksMITupdated 2026-10
▦ visual — this project's README ships no embeddable screenshot,
so here's a placeholder. The guide below is complete regardless.
so here's a placeholder. The guide below is complete regardless.
// project facts
Project facts
- Repository
- master-co/css
- GitHub stars
- 1,948
- Forks
- 44
- License
- MIT
- Last updated on GitHub
- 3 October 2026
- Category
- Agents
- Listing
- Hidden gem — a shorter page for a lesser-known project
- Official site
- Official site
// how it works
How it works
- Install Master CSS
Add it to your frontend project.
- Write markup
Express styles in HTML attributes.
- Let it orchestrate
The engine generates the CSS.
- Have agents write it
AI generates consistent markup.
// features
Why people love it
Markup-driven
Styles expressed in HTML.
Orchestration engine
Generates optimized CSS.
Agent-friendly
AI writes it reliably.
Dynamic classes
Runtime style composition.
Framework agnostic
Works with your stack.
MIT licensed
Free for any project.
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// run it
Run it yourself
- Step 1 — Clone the repo
Download the source and move into the project folder.
git clone https://github.com/master-co/css.git cd css - Step 2 — Check the README
Every project documents its own setup; start with install requirements.
cat README.md | head -60 - Step 3 — Run it
Follow the project’s launch command — Docker, pip, npm, or a binary release.
# see README for the exact launch command
// use cases
What you can build
- Style sites with markup, not CSS files.
- Let AI agents write your styles.
- Prototype UIs faster.
- Keep styling consistent.
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// faq
Questions, answered
Who maintains Master CSS?
It is an open-source project at master-co/css with 44 forks.
Is it free for commercial use?
Yes. MIT licensed.
How is it different from Tailwind?
Markup-driven orchestration rather than utility classes.
Is there a learning curve?
Small if you know HTML; the attribute syntax is new.
Does it work with my framework?
It is framework agnostic; check the docs for integrations.
// keep exploring
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// more in agents
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Get css
Free and open — grab the source, star the repo, and start creating.