Master CSS
Virtual CSS language with enhanced syntax that generates styles from class names written in HTML and JavaScript.
Master CSS is a CSS language with its own class-name syntax: styles are written in the class attributes of the HTML, and the library generates the matching CSS. The getting-started guide describes npm and CDN setups, and the browser support section says the generated CSS is injected into the browser instantly.
Worth knowing
The newest stable release on npm is older than the project’s current release candidates, which are published on GitHub. The default branch of the repository is the release candidate branch.
Identity
Rendering and deploy
- Runs as
- In the browser3
- Install with
- npm3
Releases
Adoption
Sources
- 2026-10-27: links
css.master.co/ - 2026-10-27: links
github.com/master-co/css - 2026-10-27: links, Install with, Runs as
css.master.co/docs - 2026-10-27: First release
github.com/master-co/css/releases - 2026-10-27: Maintainer, License
raw.githubusercontent.com/master-co/css/rc/LICENSE - 2026-10-27: Written in, License, License model, GitHub stars, Contributors
api.github.com/repos/master-co/css - 2026-10-27: Categories
raw.githubusercontent.com/master-co/css/rc/packages/css/package.json - 2026-10-27: Current major version, Last release
registry.npmjs.org/@master/css - 2026-10-28: npm downloads a week
api.npmjs.org/downloads/range/2026-09-28:2026-10-04/@master/css - 2026-10-27: Dependent packages, Dependent repositories
packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/%40master%2Fcss