Adds a .checked class that behaves like the :checked pseudo-class.

PostCSS plugin that allows to use the :click pseudo class and implement it in JavaScript.

Selectors decision tree - choose matching selectors, fast

Extended W3C Selectors matcher

**CSS-CTRL** is a `CSS-in-JS` library that combines ideas from **Tailwind**-like shorthands and dynamic style injection (similar to **styled-components**). It provides features such as theme/palette management, breakpoints, container queries, pseudo-class

Pseudolocalization plugin for i18next

Use the :focus-within pseudo-selector in CSS

Strict TypeScript and Flow types for style based on MDN data

Use the :focus-visible pseudo-selector in CSS

PostCSS plugin for adding an or pseudo-class.

Allows a React component to be rendered with pseudo-class styles applied

PostCSS plugin to rename classes using pseudo class selector

Bringing Classes to Inline Styles

Cloudflare Styled Elements

A CSS selector engine.

A terminal UI library for Node.js with web-style ergonomics. JSX components, CSS in real `.scss` files, flexbox layout via Yoga, focus / hover / active states with the corresponding pseudo-class selectors, mouse and keyboard input, and progressive cell-le

Polyfill for :focus-visible pseudo-selector

PostCSS plugin to scope styles using :not() pseudo-class

PostCSS plugin to convert pseudo-classes to classes for testing purposes

CSS selector engine supporting jQuery selectors