# Tailwind Design System V4

> Build scalable design systems with Tailwind CSS v4, design tokens, component libraries, and responsive patterns. Use when creating component libraries, implementing design systems, or standardizing UI patterns.

- Skill: `blockmatic/tailwind-design-system-v4` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add blockmatic/tailwind-design-system-v4`
- Raw SKILL.md: https://api.skillmd.com/api/skills/blockmatic/tailwind-design-system-v4/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: blockmatic (https://skillmd.com/u/blockmatic)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/blockmatic/tailwind-design-system-v4

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# Tailwind Design System (v4)

Build production-ready design systems with Tailwind CSS v4, including CSS-first configuration, design tokens, component variants, responsive patterns, and accessibility.

> **Note**: This skill targets Tailwind CSS v4 (2024+). For v3 projects, refer to the [upgrade guide](https://tailwindcss.com/docs/upgrade-guide).

## When to Use This Skill

- Creating a component library with Tailwind v4
- Implementing design tokens and theming with CSS-first configuration
- Building responsive and accessible components
- Standardizing UI patterns across a codebase
- Migrating from Tailwind v3 to v4
- Setting up dark mode with native CSS features

## Key v4 Changes

| v3 Pattern                            | v4 Pattern                                                            |
| ------------------------------------- | --------------------------------------------------------------------- |
| `tailwind.config.ts`                  | `@theme` in CSS                                                       |
| `@tailwind base/components/utilities` | `@import "tailwindcss"`                                               |
| `darkMode: "class"`                   | `@custom-variant dark (&:where(.dark, .dark *))`                      |
| `theme.extend.colors`                 | `@theme { --color-*: value }`                                         |
| `require("tailwindcss-animate")`      | CSS `@keyframes` in `@theme` + `@starting-style` for entry animations |

CSS setup, component patterns, and migration: [PATTERNS.md](PATTERNS.md).