csstype195.2mMIT3.2.3Strict TypeScript and Flow types for style based on MDN data
frenicIl y a 13 dayscss, style, typescript, flow css-tree183.9mMIT3.1.0A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations
csstreeIl y a 12 monthscss, ast, tokenizer, parser css-select177.4mBSD-2-Clause6.0.0a CSS selector compiler/engine
fb55Il y a 5 monthscss, selector, sizzle css-what153.8mBSD-2-Clause7.0.0a CSS selector parser
fb55Il y a 5 months cssesc154.5mMIT3.0.0A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.
mathiasbynensIl y a over 3 yearscss, escape, identifier, string