tailwindcss-mobile-first
Mobile-first responsive design patterns with 2025/2026 best practices for Tailwind CSS v4.
- Covers six breakpoint strategy, fluid typography and spacing using CSS clamp, and container queries for component-level responsiveness independent of viewport size
- Includes WCAG 2.2 compliant touch targets (44–48px minimum), safe area handling for notched devices, and practical layout patterns for grids, flexbox, and sidebars
- Provides mobile navigation patterns, responsive image and video techniques with aspect ratio containers to prevent layout shift, and performance optimization strategies
- Details responsive typography hierarchy, lazy loading, content visibility, and a comprehensive testing checklist covering 320px to 1920px viewports
name: tailwindcss-mobile-first description: Mobile-first responsive design patterns with Tailwind CSS v4 (2025-2026). PROACTIVELY activate for: (1) mobile-first design with Tailwind breakpoints (sm:, md:, lg:, xl:, 2xl:), (2) responsive utility ordering (default = mobile, then breakpoints), (3) responsive typography (text-base sm:text-lg lg:text-xl), (4) responsive grids and flexbox, (5) hide/show across breakpoints (hidden md:block), (6) max-* breakpoints for desktop-down overrides, (7) container queries (@container) for component-level responsiveness, (8) safe-area insets and notch handling, (9) landscape vs portrait orientation, (10) touch vs hover (hover: with @media). Provides: breakpoint reference, mobile-first patterns, container-query examples, safe-area recipes, and touch/hover handling.
Mobile-First Responsive Design (2025/2026)
Core Philosophy
Mobile-first design is the industry standard for 2025/2026. With mobile traffic consistently exceeding 60% of global web traffic and Google's mobile-first indexing, starting with mobile ensures optimal user experience and SEO performance.
The Mobile-First Mindset
<!-- CORRECT: Mobile-first (progressive enhancement) -->
<div class="text-sm md:text-base lg:text-lg">
Start small, enhance upward
</div>
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