tailwind-guidelines

Use when writing, reviewing, or refactoring Tailwind CSS code. Covers Tailwind, tailwindcss, utility classes, responsive design, dark mode, CSS, frontend, className, tw-merge, clsx, color system, typography, spacing, borders, rings, outlines, state variants (hover, focus, focus-visible, group-hover, data attributes), container queries, breakpoints, mobile-first, text-pretty, text-balance, opacity modifiers, @theme directive, @utility, Tailwind v4 CSS-first configuration, and common anti-patterns.