AI Agent Skills

Primer is GitHub's design system. This is the CSS implementation

The standard CSS implementation of the Spectrum design language.

A design system for building faithful recreations of old UIs

A design system for building retro Apple interfaces

Anti-AI-slop design skill for Claude Code, Cursor, and Codex.

Preline UI is an open-source set of prebuilt UI components based on the utility-first Tailwind CSS framework.

Juice inlines CSS stylesheets into your HTML source.

Use Tailwind CSS to design HTML emails.

Native CSS search engine

Generate critical css for your web pages

CSS styled emails without the hassle.

Converts CSS styles into inline style attributes in your HTML code.

Create secure and private web apps using only static JavaScript, HTML, and CSS.