Write pseudo styles directly into your html
A query library for ECMAScript AST using a CSS selector like query language.
Bringing Classes to Inline Styles
a CSS selector parser
A pseudo-class for matching elements in a selector list
Style form elements when they are empty
Use the :any-link pseudo-class in CSS
Use the :dir pseudo-class in CSS
Style elements relative to other elements in CSS
The Reference Element Pseudo-class: :scope
Storybook Pseudo-states addon: Manipulate CSS pseudo states
Transform style sheet to be consumed by the LWC engine
pseudo-localization for internationalization testing
Pseudolocalization plugin for i18next
Extended W3C Selectors matcher
PostCSS plugin to transform the :is() CSS pseudo-class into more compatible CSS selectors.
An inline style parser.
Selectors decision tree - choose matching selectors, fast
Use the :focus-within pseudo-selector in CSS
Use the :focus-visible pseudo-selector in CSS
A stylelint plugin that enforces the use of ampersands in front of pseudo selectors
Strict TypeScript and Flow types for style based on MDN data
Cloudflare Styled Elements
Polyfill for :focus-visible pseudo-selector