







A design system for building faithful recreations of the Windows 7 UI.


tailwindcss - npmx
A utility-first CSS framework for rapidly building custom user interfaces.

Radix UI
Components, icons, and colors for building high‑quality, accessible UI. Free and open-source.
The CSS Selection - 2026 Edition - Project Wallace
The CSS Selection shows real-world CSS usage from over 100,000 websites and looks at the most important metrics.

The State of CSS 2020: Conclusion
The annual survey about the latest trends in CSS.

Building a UI framework
Building a UI Framework Ian Hickson (ian@hixie.ch) — 2025 — First Edition — https://software.hixie.ch/ui-frameworksTo leave comments, use the edit version. Introduction This document examines important design decisions for creating a new graphical UI framework. It was commissioned to answer the...
Glen Maddern: Internet Pro
Let me tell you about what CSS Modules is, and why it’s the future.
The Layout Maestro by Ahmad Shadeed
Build any web layout with confidence. Learn practical CSS layout through visual lessons, interactive demos, and a proven layout mindset.


2026 CSS wishlist – Nathan Knowler
What I’d like to see prioritized for CSS in 2026, how those features will allow us to create better web-based design systems, and how they renew separation of concerns.
Modern CSS snippets. Every old hack, replaced.
Side-by-side comparisons of outdated CSS techniques and their modern native replacements. Grid, custom properties, nesting, container queries, and more.

Modern CSS snippets. Every old hack, replaced.
Side-by-side comparisons of outdated CSS techniques and their modern native replacements. Grid, custom properties, nesting, container queries, and more.

Melt UI
An open-source Svelte component library for building high-quality, accessible design systems and web apps.

Components.build
An open standard for building modern, composable and accessible UI components.
