Tailwindcss Mobile First

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>

<!-- INCORRECT: Desktop-first (graceful degradation) -->
<div class="lg:text-lg md:text-base text-sm">
  Starts large, reduces down (more code, more bugs)
</div>

Key Principle: Unprefixed utilities apply to ALL screen sizes. Breakpoint prefixes apply at that size AND ABOVE.

2025/2026 Breakpoint Strategy

Tailwind's Default Breakpoints

Content-Driven Breakpoints

Best Practice 2025/2026: Let content determine breakpoints, not device dimensions.

@theme {
  /* Override defaults based on YOUR content needs */
  --breakpoint-sm: 36rem;  /* 576px - when your content needs more space */
  --breakpoint-md: 48rem;  /* 768px */
  --breakpoint-lg: 62rem;  /* 992px - common content width */
  --breakpoint-xl: 75rem;  /* 1200px */
  --breakpoint-2xl: 90rem; /* 1440px */

  /* Add custom breakpoints for specific content needs */
  --breakpoint-xs: 20rem;  /* 320px - very small devices */
  --breakpoint-3xl: 120rem; /* 1920px - ultra-wide */
}

Screen Coverage Strategy

<!-- Cover the most common device ranges (2025/2026 data) -->

<!-- 375px-430px: ~50% of mobile devices (iPhone, modern Android) -->
<div class="px-4">Mobile base</div>

<!-- 768px+: Tablets and small laptops -->
<div class="px-4 md:px-6">Tablet enhancement</div>

<!-- 1024px+: Desktop experience -->
<div class="px-4 md:px-6 lg:px-8">Desktop enhancement</div>

<!-- 1440px+: Wide desktop experience -->
<div class="px-4 md:px-6 lg:px-8 xl:px-12">Wide desktop</div>

Fluid Typography System

CSS Clamp for Smooth Scaling

Fluid typography eliminates jarring size jumps between breakpoints:

@theme {
  /* Fluid typography scale */
  --text-fluid-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-fluid-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-fluid-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-fluid-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-fluid-xl: clamp(1.25rem, 1rem + 1.25vw, 1.5rem);
  --text-fluid-2xl: clamp(1.5rem, 1.1rem + 2vw, 2rem);
  --text-fluid-3xl: clamp(1.875rem, 1.2rem + 3.375vw, 2.5rem);
  --text-fluid-4xl: clamp(2.25rem, 1rem + 6.25vw, 3.5rem);
  --text-fluid-5xl: clamp(3rem, 1rem + 10vw, 5rem);
}

Important for Accessibility: Always combine vw with rem to respect user zoom preferences (WCAG compliance).

Using Fluid Typography

<!-- Fluid heading that scales smoothly -->
<h1 class="text-fluid-4xl font-bold leading-tight">
  Responsive Heading
</h1>

<!-- Fluid body text -->
<p class="text-fluid-base leading-relaxed max-w-prose">
  Body text that scales proportionally with the viewport
  while respecting user's font size preferences.
</p>

<!-- Fluid with breakpoint overrides for fine control -->
<h2 class="text-fluid-2xl lg:text-fluid-3xl font-semibold">
  Section Title
</h2>

Fluid Spacing System

Clamp-Based Spacing

@theme {
  /* Fluid spacing scale */
  --spacing-fluid-xs: clamp(0.25rem, 0.2rem + 0.25vw, 0.5rem);
  --spacing-fluid-sm: clamp(0.5rem, 0.4rem + 0.5vw, 1rem);
  --spacing-fluid-md: clamp(1rem, 0.75rem + 1.25vw, 2rem);
  --spacing-fluid-lg: clamp(1.5rem, 1rem + 2.5vw, 3rem);
  --spacing-fluid-xl: clamp(2rem, 1.25rem + 3.75vw, 4rem);
  --spacing-fluid-2xl: clamp(3rem, 1.5rem + 7.5vw, 6rem);
  --spacing-fluid-section: clamp(4rem, 2rem + 10vw, 8rem);
}

Using Fluid Spacing

<!-- Fluid section padding -->
<section class="py-fluid-section px-fluid-md">
  <div class="max-w-7xl mx-auto">
    <h2 class="mb-fluid-lg">Section Title</h2>
    <div class="grid gap-fluid-md grid-cols-1 md:grid-cols-2 lg:grid-cols-3">
      <!-- Cards -->
    </div>
  </div>
</section>

<!-- Hero section with fluid spacing -->
<header class="min-h-screen flex items-center py-fluid-2xl px-fluid-md">
  <div class="max-w-4xl">
    <h1 class="text-fluid-5xl mb-fluid-md">Hero Title</h1>
    <p class="text-fluid-lg mb-fluid-lg">Hero description</p>
    <button class="px-fluid-md py-fluid-sm">Get Started</button>
  </div>
</header>

Touch-Friendly Interactive Elements

WCAG 2.2 Touch Target Requirements

Minimum sizes (2025 standards):

• WCAG 2.2 Level AA: 24x24 CSS pixels minimum
• Recommended: 44x44 CSS pixels (Apple, Google, Microsoft guidelines)
• Optimal: 48x48 CSS pixels for critical actions

<!-- WCAG 2.2 compliant touch targets -->

<!-- Minimum AA compliant (24px) -->
<button class="min-h-6 min-w-6 p-1">
  <svg class="h-4 w-4">...</svg>
</button>

<!-- Recommended size (44px) -->
<button class="min-h-11 min-w-11 p-2.5">
  <svg class="h-6 w-6">...</svg>
  <span class="sr-only">Action</span>
</button>

<!-- Optimal for primary actions (48px) -->
<button class="min-h-12 min-w-12 px-6 py-3 text-base">
  Primary Action
</button>

Extended Touch Targets

<!-- Extend touch target beyond visible element -->
<a href="/link" class="relative inline-block text-sm">
  Small visible link
  <!-- Invisible extended touch area -->
  <span class="absolute -inset-3" aria-hidden="true"></span>
</a>

<!-- Icon button with extended target -->
<button class="relative p-2 -m-2 rounded-lg hover:bg-gray-100">
  <svg class="h-5 w-5" aria-hidden="true">...</svg>
  <span class="sr-only">Close</span>
</button>

Touch Target Spacing

<!-- Adequate spacing between touch targets (minimum 8px gap) -->
<nav class="flex gap-3">
  <a href="#" class="min-h-11 px-4 py-2.5">Home</a>
  <a href="#" class="min-h-11 px-4 py-2.5">About</a>
  <a href="#" class="min-h-11 px-4 py-2.5">Contact</a>
</nav>

<!-- Stacked navigation with adequate spacing -->
<nav class="flex flex-col">
  <a href="#" class="py-3 px-4 min-h-11 border-b border-gray-100">Link 1</a>
  <a href="#" class="py-3 px-4 min-h-11 border-b border-gray-100">Link 2</a>
  <a href="#" class="py-3 px-4 min-h-11">Link 3</a>
</nav>

<!-- Button group with safe spacing -->
<div class="flex flex-wrap gap-3">
  <button class="min-h-11 px-4 py-2">Cancel</button>
  <button class="min-h-11 px-4 py-2 bg-blue-600 text-white">Confirm</button>
</div>

Container Queries (2025 Game-Changer)

Container queries enable component-level responsiveness, independent of viewport size.

Setup

@import "tailwindcss";
@plugin "@tailwindcss/container-queries";

Container Query Breakpoints

Practical Container Query Patterns

<!-- Card that responds to its container, not viewport -->
<article class="@container">
  <div class="
    flex flex-col @sm:flex-row
    gap-4 p-4
    bg-white rounded-xl shadow-sm
  ">
    <img
      src="..."
      class="
        w-full @sm:w-32 @lg:w-48
        aspect-video @sm:aspect-square
        object-cover rounded-lg
      "
    />
    <div class="flex-1 min-w-0">
      <h3 class="text-base @md:text-lg @lg:text-xl font-semibold truncate">
        Card Title
      </h3>
      <p class="
        text-sm @md:text-base
        text-gray-600
        line-clamp-2 @lg:line-clamp-3
        mt-2
      ">
        Description that adapts to available space...
      </p>
      <div class="mt-4 flex flex-wrap gap-2 @md:gap-3">
        <span class="text-xs @md:text-sm px-2 py-1 bg-gray-100 rounded">Tag</span>
      </div>
    </div>
  </div>
</article>

Named Containers

<div class="@container/sidebar w-64">
  <nav class="
    flex flex-col @lg/sidebar:flex-row
    @lg/sidebar:items-center
    gap-2 @lg/sidebar:gap-4
  ">
    <a href="#">Link 1</a>
    <a href="#">Link 2</a>
  </nav>
</div>

<main class="@container/main flex-1">
  <div class="
    grid grid-cols-1
    @md/main:grid-cols-2
    @xl/main:grid-cols-3
    gap-6
  ">
    <!-- Grid items respond to main container -->
  </div>
</main>

When to Use Container vs Viewport Queries

Responsive Layout Patterns

Mobile-First Grid System

<!-- Auto-responsive grid with minimum card width -->
<div class="
  grid gap-6
  grid-cols-1
  sm:grid-cols-2
  lg:grid-cols-3
  xl:grid-cols-4
">
  <!-- Cards automatically flow -->
</div>

<!-- CSS Grid auto-fit (no breakpoints needed) -->
<div class="grid grid-cols-[repeat(auto-fit,minmax(280px,1fr))] gap-6">
  <!-- Cards auto-fit with 280px minimum -->
</div>

<!-- CSS Grid auto-fill for fixed-size items -->
<div class="grid grid-cols-[repeat(auto-fill,minmax(200px,1fr))] gap-4">
  <!-- Fixed minimum size, grows to fill -->
</div>

Responsive Flexbox Patterns

<!-- Stack to row -->
<div class="flex flex-col md:flex-row gap-4">
  <div class="flex-1">Content 1</div>
  <div class="flex-1">Content 2</div>
</div>

<!-- Wrap with centered items -->
<div class="flex flex-wrap justify-center gap-4">
  <div class="w-full sm:w-auto">Item 1</div>
  <div class="w-full sm:w-auto">Item 2</div>
  <div class="w-full sm:w-auto">Item 3</div>
</div>

<!-- Mobile stack, desktop inline with push -->
<div class="flex flex-col sm:flex-row sm:items-center gap-4">
  <div class="flex-1">
    <h3>Title</h3>
    <p class="text-sm text-gray-600">Description</p>
  </div>
  <button class="sm:ml-auto min-h-11 px-4 py-2">Action</button>
</div>

Responsive Sidebar Layouts

<!-- Collapsible sidebar -->
<div class="flex min-h-screen">
  <!-- Sidebar: hidden on mobile, visible on desktop -->
  <aside class="
    hidden lg:flex lg:flex-col
    w-64 border-r bg-gray-50
  ">
    <nav class="flex-1 p-4">...</nav>
  </aside>

  <!-- Main content -->
  <main class="flex-1 p-4 lg:p-8">
    Content
  </main>
</div>

<!-- Mobile drawer + desktop sidebar -->
<div class="relative flex min-h-screen">
  <!-- Mobile drawer overlay -->
  <div class="
    fixed inset-0 z-40 lg:hidden
    bg-black/50
    data-[open=false]:hidden
  " data-open="false">
    <aside class="w-64 h-full bg-white">
      Mobile navigation
    </aside>
  </div>

  <!-- Desktop sidebar -->
  <aside class="hidden lg:block w-64 border-r">
    Desktop navigation
  </aside>

  <main class="flex-1">Content</main>
</div>

Holy Grail Layout (2025)

<div class="min-h-screen grid grid-rows-[auto_1fr_auto]">
  <!-- Header -->
  <header class="sticky top-0 z-50 h-16 bg-white border-b shadow-sm">
    <nav class="h-full max-w-7xl mx-auto px-4 flex items-center justify-between">
      <Logo />
      <ul class="hidden md:flex gap-6">...</ul>
      <button class="md:hidden min-h-11 min-w-11">Menu</button>
    </nav>
  </header>

  <!-- Main content area with optional sidebars -->
  <div class="
    grid
    grid-cols-1
    md:grid-cols-[240px_1fr]
    lg:grid-cols-[240px_1fr_280px]
    gap-0
  ">
    <nav class="hidden md:block border-r p-4">Left Nav</nav>
    <main class="p-4 md:p-6 lg:p-8">Main Content</main>
    <aside class="hidden lg:block border-l p-4">Right Sidebar</aside>
  </div>

  <!-- Footer -->
  <footer class="bg-gray-900 text-white py-8 md:py-12">
    Footer content
  </footer>
</div>

Responsive Images

Aspect Ratio Containers

<!-- Maintain aspect ratio across all sizes -->
<div class="aspect-video overflow-hidden rounded-lg">
  <img src="..." class="w-full h-full object-cover" loading="lazy" />
</div>

<!-- Responsive aspect ratio -->
<div class="aspect-square sm:aspect-video lg:aspect-[4/3] overflow-hidden">
  <img src="..." class="w-full h-full object-cover" />
</div>

Responsive Image Sizes

<!-- Art direction with picture element -->
<picture>
  <source media="(min-width: 1024px)" srcset="large.jpg" />
  <source media="(min-width: 640px)" srcset="medium.jpg" />
  <img
    src="small.jpg"
    alt="Description"
    class="w-full h-auto rounded-lg"
    loading="lazy"
  />
</picture>

<!-- Responsive srcset -->
<img
  src="image-800.jpg"
  srcset="
    image-400.jpg 400w,
    image-800.jpg 800w,
    image-1200.jpg 1200w,
    image-1600.jpg 1600w
  "
  sizes="
    (min-width: 1280px) 1200px,
    (min-width: 768px) 80vw,
    100vw
  "
  alt="Responsive image"
  class="w-full h-auto"
  loading="lazy"
/>

Responsive Typography Patterns

Heading Hierarchy

<!-- Mobile-first heading scale -->
<h1 class="
  text-2xl sm:text-3xl md:text-4xl lg:text-5xl xl:text-6xl
  font-bold leading-tight tracking-tight
">
  Main Heading
</h1>

<h2 class="
  text-xl sm:text-2xl md:text-3xl lg:text-4xl
  font-semibold leading-snug
">
  Section Heading
</h2>

<h3 class="
  text-lg sm:text-xl md:text-2xl
  font-medium
">
  Subsection Heading
</h3>

Readable Body Text

<!-- Optimal line length and spacing -->
<article class="max-w-prose mx-auto">
  <p class="
    text-base md:text-lg
    leading-relaxed md:leading-loose
    text-gray-700 dark:text-gray-300
  ">
    Body text optimized for readability with 45-75 characters per line.
  </p>
</article>

<!-- Text that balances across lines -->
<h2 class="text-balance text-2xl md:text-3xl font-bold max-w-2xl">
  This heading will balance text across lines to avoid orphans
</h2>

Mobile Navigation Patterns

Hamburger to Full Nav

<nav class="relative">
  <!-- Desktop navigation -->
  <ul class="hidden md:flex items-center gap-6">
    <li><a href="#" class="py-2 hover:text-blue-600">Home</a></li>
    <li><a href="#" class="py-2 hover:text-blue-600">Products</a></li>
    <li><a href="#" class="py-2 hover:text-blue-600">About</a></li>
    <li><a href="#" class="py-2 hover:text-blue-600">Contact</a></li>
  </ul>

  <!-- Mobile menu button -->
  <button
    class="md:hidden min-h-11 min-w-11 p-2"
    aria-expanded="false"
    aria-controls="mobile-menu"
    aria-label="Toggle navigation menu"
  >
    <svg class="h-6 w-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
      <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16"/>
    </svg>
  </button>

  <!-- Mobile menu (controlled via JS) -->
  <div
    id="mobile-menu"
    class="
      md:hidden
      absolute top-full left-0 right-0
      bg-white shadow-lg border-t
      hidden
    "
  >
    <ul class="py-2">
      <li><a href="#" class="block px-4 py-3 min-h-11 hover:bg-gray-50">Home</a></li>
      <li><a href="#" class="block px-4 py-3 min-h-11 hover:bg-gray-50">Products</a></li>
      <li><a href="#" class="block px-4 py-3 min-h-11 hover:bg-gray-50">About</a></li>
      <li><a href="#" class="block px-4 py-3 min-h-11 hover:bg-gray-50">Contact</a></li>
    </ul>
  </div>
</nav>

Bottom Navigation (Mobile App Style)

<!-- Fixed bottom navigation for mobile -->
<nav class="
  fixed bottom-0 inset-x-0 z-50
  md:hidden
  bg-white border-t shadow-lg
  safe-area-pb
">
  <ul class="flex justify-around">
    <li>
      <a href="#" class="
        flex flex-col items-center
        min-h-14 min-w-14 px-3 py-2
        text-xs
        text-gray-600 hover:text-blue-600
        aria-current:text-blue-600
      ">
        <svg class="h-6 w-6 mb-1">...</svg>
        Home
      </a>
    </li>
    <li>
      <a href="#" class="flex flex-col items-center min-h-14 min-w-14 px-3 py-2 text-xs">
        <svg class="h-6 w-6 mb-1">...</svg>
        Search
      </a>
    </li>
    <li>
      <a href="#" class="flex flex-col items-center min-h-14 min-w-14 px-3 py-2 text-xs">
        <svg class="h-6 w-6 mb-1">...</svg>
        Profile
      </a>
    </li>
  </ul>
</nav>

<!-- Add padding to main content to prevent overlap -->
<main class="pb-20 md:pb-0">
  Content
</main>

Safe Area Handling (Notched Devices)

@utility safe-area-pt {
  padding-top: env(safe-area-inset-top);
}

@utility safe-area-pb {
  padding-bottom: env(safe-area-inset-bottom);
}

@utility safe-area-pl {
  padding-left: env(safe-area-inset-left);
}

@utility safe-area-pr {
  padding-right: env(safe-area-inset-right);
}

@utility safe-area-p {
  padding-top: env(safe-area-inset-top);
  padding-right: env(safe-area-inset-right);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
}

<!-- Header that respects notch -->
<header class="sticky top-0 safe-area-pt bg-white">
  <div class="h-16 flex items-center px-4">
    Navigation
  </div>
</header>

<!-- Bottom navigation with safe area -->
<nav class="fixed bottom-0 inset-x-0 safe-area-pb bg-white border-t">
  Bottom nav
</nav>

Performance Optimization for Mobile

Lazy Loading

<!-- Native lazy loading for images -->
<img src="image.jpg" alt="..." loading="lazy" class="w-full h-auto" />

<!-- Lazy load below-fold content -->
<div class="contents" data-lazy-load>
  Heavy component loaded on demand
</div>

Content Visibility

@utility content-auto {
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

<!-- Skip rendering off-screen content -->
<section class="content-auto">
  Large section that may be off-screen
</section>

Reduced Data Usage

<!-- Show simpler version on slow connections -->
<picture>
  <source
    srcset="video-poster.jpg"
    media="(prefers-reduced-data: reduce)"
  />
  <img src="animated.gif" alt="..." />
</picture>

Responsive Testing Checklist

Essential Tests

1. 320px - Smallest supported width (older iPhones)
2. 375px - Modern iPhone base
3. 414px - Large phones (iPhone Plus/Max)
4. 768px - iPad portrait
5. 1024px - iPad landscape / small laptop
6. 1280px - Standard laptop
7. 1440px - Large desktop
8. 1920px - Full HD desktop

Quality Checks

• Text remains readable at all sizes
• Touch targets are minimum 44px on mobile
• No horizontal scroll on any viewport
• Images don't overflow containers
• Navigation is accessible on all sizes
• Forms are usable on mobile
• Modals fit mobile screens
• Tables have mobile alternatives
• Performance under 3s LCP on 3G

Responsive Video Containers

Aspect Ratio Utilities for Video

Use Tailwind's aspect-* utilities to maintain correct video proportions across all screen sizes, preventing Cumulative Layout Shift (CLS):

<!-- Standard 16:9 video container -->
<div class="aspect-video overflow-hidden rounded-lg bg-black">
  <video class="w-full h-full object-cover" playsinline preload="metadata">
    <source src="video.mp4" type="video/mp4" />
  </video>
</div>

<!-- Vertical video (9:16) for mobile-first social content -->
<div class="aspect-[9/16] overflow-hidden rounded-lg bg-black max-w-sm mx-auto">
  <video class="w-full h-full object-cover" playsinline muted loop>
    <source src="reel.mp4" type="video/mp4" />
  </video>
</div>

<!-- Square video (1:1) common for social feeds -->
<div class="aspect-square overflow-hidden rounded-lg bg-black">
  <video class="w-full h-full object-cover" playsinline preload="metadata">
    <source src="square.mp4" type="video/mp4" />
  </video>
</div>

<!-- Responsive aspect ratio - vertical on mobile, widescreen on desktop -->
<div class="aspect-[9/16] sm:aspect-video overflow-hidden rounded-lg bg-black">
  <video class="w-full h-full object-contain" playsinline preload="metadata">
    <source src="video.mp4" type="video/mp4" />
  </video>
</div>

Preventing CLS with Video Placeholders

Videos without defined dimensions cause layout shift when they load. Use aspect ratio containers to reserve space:

<!-- CLS-safe video with poster and skeleton loader -->
<div class="relative aspect-video overflow-hidden rounded-lg bg-gray-900">
  <!-- Skeleton placeholder while video loads -->
  <div class="absolute inset-0 animate-pulse bg-gray-800" aria-hidden="true"></div>

  <video
    class="absolute inset-0 w-full h-full object-cover"
    poster="/thumbnails/video-poster.jpg"
    playsinline
    preload="metadata"
  >
    <source src="video.mp4" type="video/mp4" />
  </video>
</div>

<!-- Responsive grid of video thumbnails with zero CLS -->
<div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4">
  <div class="aspect-video overflow-hidden rounded-lg bg-gray-900">
    <video class="w-full h-full object-cover" poster="/thumb1.jpg" preload="none" playsinline></video>
  </div>
  <div class="aspect-video overflow-hidden rounded-lg bg-gray-900">
    <video class="w-full h-full object-cover" poster="/thumb2.jpg" preload="none" playsinline></video>
  </div>
  <div class="aspect-video overflow-hidden rounded-lg bg-gray-900">
    <video class="w-full h-full object-cover" poster="/thumb3.jpg" preload="none" playsinline></video>
  </div>
</div>

Full-Bleed Video on Mobile, Constrained on Desktop

<!-- Full-width on mobile, centered with max-width on desktop -->
<div class="w-full lg:max-w-4xl lg:mx-auto">
  <div class="aspect-video overflow-hidden lg:rounded-xl bg-black">
    <video class="w-full h-full object-cover" playsinline preload="metadata">
      <source src="hero.mp4" type="video/mp4" />
    </video>
  </div>
</div>

<!-- Full-bleed hero video background -->
<section class="relative w-full h-screen overflow-hidden">
  <video
    class="absolute inset-0 w-full h-full object-cover"
    autoplay muted loop playsinline
    preload="auto"
  >
    <source src="hero-bg.mp4" type="video/mp4" />
  </video>

  <!-- Content overlay with safe padding -->
  <div class="relative z-10 flex items-center justify-center h-full px-4 sm:px-8">
    <div class="text-center text-white max-w-2xl">
      <h1 class="text-3xl sm:text-4xl lg:text-6xl font-bold">Hero Title</h1>
      <p class="mt-4 text-lg sm:text-xl">Subtitle text</p>
    </div>
  </div>

  <!-- Dark overlay for text readability -->
  <div class="absolute inset-0 bg-black/40" aria-hidden="true"></div>
</section>

Safe Zone Overlays for Video UI

Video player controls and UI elements need touch-friendly sizing and proper placement:

<!-- Custom video player with touch-safe controls -->
<div class="@container relative aspect-video overflow-hidden rounded-lg bg-black group">
  <video class="w-full h-full object-cover" playsinline preload="metadata">
    <source src="video.mp4" type="video/mp4" />
  </video>

  <!-- Play/Pause overlay - centered, touch-friendly -->
  <button class="
    absolute inset-0 flex items-center justify-center
    bg-black/0 group-hover:bg-black/20 transition-colors
  ">
    <span class="
      w-16 h-16 sm:w-20 sm:h-20
      flex items-center justify-center
      rounded-full bg-white/90
      shadow-lg
    ">
      <svg class="w-8 h-8 sm:w-10 sm:h-10 text-gray-900 ml-1" viewBox="0 0 24 24" fill="currentColor">
        <path d="M8 5v14l11-7z"/>
      </svg>
    </span>
  </button>

  <!-- Bottom controls bar - respects touch targets -->
  <div class="
    absolute bottom-0 inset-x-0
    bg-gradient-to-t from-black/80 to-transparent
    p-3 sm:p-4
    flex items-center gap-3
    opacity-0 group-hover:opacity-100 transition-opacity
  ">
    <!-- Progress bar - tall enough for touch -->
    <div class="flex-1 h-1 bg-white/30 rounded-full cursor-pointer">
      <div class="h-full w-1/3 bg-white rounded-full relative">
        <span class="absolute right-0 top-1/2 -translate-y-1/2 w-4 h-4 bg-white rounded-full -mr-2"></span>
      </div>
    </div>

    <!-- Time display -->
    <span class="text-white text-xs sm:text-sm tabular-nums shrink-0">1:23 / 4:56</span>

    <!-- Fullscreen button - touch-friendly minimum size -->
    <button class="min-h-11 min-w-11 flex items-center justify-center text-white">
      <svg class="w-5 h-5" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
        <path d="M8 3H5a2 2 0 0 0-2 2v3m18 0V5a2 2 0 0 0-2-2h-3m0 18h3a2 2 0 0 0 2-2v-3M3 16v3a2 2 0 0 0 2 2h3"/>
      </svg>
    </button>
  </div>
</div>

Container Queries for Adaptive Video Players

Video player components that adapt their layout based on container size --- useful when the same player appears in a sidebar, main content area, or modal:

<!-- Video player that adapts to its container -->
<div class="@container">
  <div class="
    flex flex-col @lg:flex-row
    gap-4 @lg:gap-6
    bg-gray-950 rounded-xl overflow-hidden
  ">
    <!-- Video area -->
    <div class="
      w-full @lg:flex-1
      aspect-video
      overflow-hidden
    ">
      <video class="w-full h-full object-cover" playsinline preload="metadata">
        <source src="video.mp4" type="video/mp4" />
      </video>
    </div>

    <!-- Info panel - below video on narrow, beside on wide -->
    <div class="
      p-4 @lg:p-6
      @lg:w-80 @lg:overflow-y-auto
      text-white
    ">
      <h3 class="text-base @lg:text-lg font-semibold">Video Title</h3>
      <p class="text-sm text-gray-400 mt-2 line-clamp-2 @lg:line-clamp-none">
        Video description that shows more text when the container is wider...
      </p>

      <!-- Related videos - hidden in narrow containers -->
      <div class="hidden @xl:block mt-6 space-y-3">
        <h4 class="text-sm font-medium text-gray-300">Related</h4>
        <div class="space-y-2">
          <div class="flex gap-3">
            <div class="w-28 aspect-video bg-gray-800 rounded shrink-0"></div>
            <div class="text-xs text-gray-400">Related Video 1</div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

Best Practices Summary

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