csstype184.2mMIT3.1.3Strict TypeScript and Flow types for style based on MDN data
frenicover 1 year atráscss, style, typescript, flow css-select168.6mBSD-2-Clause6.0.0a CSS selector compiler/engine
fb552 months atráscss, selector, sizzle css-tree167.8mMIT3.1.0A 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
csstree9 months atráscss, ast, tokenizer, parser css-what146.1mBSD-2-Clause7.0.0a CSS selector parser
fb552 months atrás cssom163.9mMIT0.5.0CSS Object Model implementation and CSS parser
NVabout 3 years atrásCSS, CSSOM, parser, styleSheet 
debug-js
lodash
facebook
ljharb
caolan
babel