







A design system for building faithful recreations of old UIs.

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

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Side-by-side comparisons of outdated CSS techniques and their modern native replacements.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Side-by-side comparisons of outdated CSS techniques and their modern native replacements.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.

Radix UI
Components, icons, and colors for building high‑quality, accessible UI. Free and open-source.
Ideas on modernizing the open-source desktop
Scott Jenson has been working on user interfaces (UIs) and user experience (UX) for many years [...]
Components.build
An open standard for building modern, composable and accessible UI components.

Open Props UI | A modern CSS UI library
CSS UI library leveraging the most modern features. Components you can copy and paste into your project.

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


Glen Maddern: Internet Pro
Let me tell you about what CSS Modules is, and why it’s the future.
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...
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.
