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Selectors decision tree - choose matching selectors, fast
Use the :dir pseudo-class in CSS
A CSS selector engine.
Cloudflare Styled Elements
HTML to Sketch
A query library for ECMAScript AST using a CSS selector like query language.
a CSS selector parser
A pseudo-class for matching elements in a selector list
React implementation of Atomic CSS-in-JS
PostCSS plugin to convert pseudo-classes to classes for testing purposes
Style form elements when they are empty
Use the :any-link pseudo-class in CSS
Style elements relative to other elements in CSS
The Reference Element Pseudo-class: :scope
PostCSS plugin to transform :not() W3C CSS level 4 pseudo class to :not() CSS level 3 selectors
PostCSS plugin to transform CSS Custom Properties(CSS variables) syntax into a static representation
Storybook Pseudo-states addon: Manipulate CSS pseudo states
Get a list of all CSS pseudo-classes.
Powerful and compliant CSS selector parser.
Polyfill for :focus-visible pseudo-selector
PostCSS plugin to add companion classes to pseudo-classes for testing purposes (works with css modules)
StrongLoop Globalize - API
Match BCP 47 language tags with language ranges per RFC 4647