container-queries

EQCSS is a CSS Reprocessor that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up

Polyfills the ResizeObserver API.

😎 📏 React hook to measure an element's size and handle responsive components.

📦 Modular responsive component

Prolyfill for CSS Container Queries

A CSS UI library exploring how next-gen HTML & CSS features can change the way we create components. Designed to be used by professional teams as well as tinkering hobbyists.

A simple, tiny alternative to element/container queries

CSSplus is a collection of CSS Reprocessor plugins that dynamically update CSS variables

Make container queries that harness the power of Ember

Create self-positioning popovers with native CSS—no JavaScript required. Made for Svelte 5. Build tooltips, dropdowns and any floating UI components.

Baseline-aware modern CSS Agent Skill: small SKILL.md router + on-demand references. Claude Code, Codex, Cursor, Copilot, Gemini CLI, OpenCode, Pi, Kiro, Pythinker Code, Aider + 70 more agents.

Friendly container queries for Ember

My personal website, built with Fig

Add JavaScript tests to <link> tags to toggle stylesheets

A modern starter CSS library with container queries, a real CSS grid system, clamp() powered typography and spacing sizes, oklch() shade utilities, and custom properties.

vue-container-query

SSR-safe responsive toolkit for TypeScript. Breakpoints, container queries, fluid typography, viewport tracking, and user preference hooks. One API across 8 frameworks.

Framework-agnostic frontend design skill for UI/UX — CSS layers, OKLCH tokens, container queries, WCAG 2.2, Design.md

Responsive elements script.

Zero-JavaScript Stylus component library: 40 accessible UI components built on OKLCH colour, native @layer, CSS anchor positioning and light-dark(). 1.9 kB Brotli core, WCAG 2.2 AA audited on every build.