eqcss/eqcss

Health v2 · maintenance only

Adoption not part of the score

1489 stars · 69 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

EQCSS is a JavaScript-based CSS reprocessor that adds element queries (@element), scoped CSS, a parent selector, and responsive JavaScript to browsers as old as IE8. It lets developers write responsive conditions based on individual elements rather than the browser viewport, without requiring any other libraries.

Use cases

• style elements based on their own size instead of the viewport
• add element queries to browsers that lack container query support
• scope CSS styles to individual elements
• use a parent selector in CSS
• support responsive design in legacy browsers like IE8
• respond to element content like child count or text lines in CSS

When to choose

• you need element/container queries in browsers without native support
• you must support legacy browsers such as IE8
• you want scoped styles or a parent selector in plain CSS today

When to avoid

• your target browsers support native container queries
• you prefer a build-time CSS preprocessor over a runtime script
• the project needs active maintenance and recent updates

Facets

library · maturity maintenance

ui-components css-framework browser-extension frontend web-development web-design browser element-queries container-queries css-reprocessor scoped-css parent-selector polyfill responsive-design ie8-support javascript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="eqcss/eqcss")