Tailwind CSS Patterns (v4 - 2025) Modern utility-first CSS with CSS-native configuration. When to Use Use this skill when configuring Tailwind v4, using CSS-first theme and design tokens, or implementing container queries and modern Tailwind patterns. --- 1. Tailwind v4 Architecture What Changed from v3 | v3 (Legacy) | v4 (Current) | |-------------|--------------| | | CSS-based directive | | PostCSS plugin | Oxide engine (10x faster) | | JIT mode | Native, always-on | | Plugin system | CSS-native features | | directive | Still works, discouraged | v4 Core Concepts | Concept | Description | |-…