plugins/tailwindcss/skills/tailwindcss-responsive/SKILL.md
Responsive design utilities in Tailwind CSS v4: default breakpoints (sm/md/lg/xl/2xl), custom breakpoints via @theme, container queries (@container, @md, @lg), and mobile-first patterns. Use when: applying responsive variants at different screen widths, defining a custom breakpoint, or building container-query-based responsive components.
npx skillsauth add fusengine/agents tailwindcss-responsiveInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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| Variant | Size | CSS |
|---------|--------|-----|
| sm: | 40rem (640px) | @media (width >= 40rem) |
| md: | 48rem (768px) | @media (width >= 48rem) |
| lg: | 64rem (1024px) | @media (width >= 64rem) |
| xl: | 80rem (1280px) | @media (width >= 80rem) |
| 2xl: | 96rem (1536px) | @media (width >= 96rem) |
@theme {
--breakpoint-3xl: 120rem;
}
/* Usage: 3xl:grid-cols-6 */
<div class="@container">
<div class="@md:grid-cols-2 @lg:grid-cols-3">
<!-- Responsive to container -->
</div>
</div>
<div class="text-sm md:text-base lg:text-lg">
<!-- Small screens first -->
</div>
testing
Copy self-audit and ban-lists — filler verbs/hype adjectives, slop placeholder names, fake-precise numbers, Title Case headlines, humor in error copy ('Oops!'), em-dash crutch, one copy register per page.
development
Logged-in web apps — dashboards, auth flows, settings, onboarding, data tables, command palettes, modals, toasts. Register `product`: density and glance-speed over marketing polish, no hero/CTA-tricks, every data surface covers empty/loading/error explicitly, tables and dataviz follow preattentive-processing rules.
development
Marketing sites, landing pages, campaign pages — register `brand` (design IS the product). Structure comes from the register's POV + a macrostructure pick, never from copying an inspiration site's section flow. Hero discipline, deviated section order, asymmetric grids, and a silhouette lookalike-test gate before ship.
development
Token-strategy core — OKLCH color rules, neutral tinting, accent-commitment levels, type scale, 8pt spacing grid, touch targets, and the canonical output format of design-system.md (the file the harness gates on). This is routing step 1 of design-method/SKILL.md — read it before design-web/design-webapp/design-ios/design-android, before picking or auditing a single color/type/spacing value.