32 Tailwind CSS Tabs
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All 32 in 32 Tailwind CSS Tabs

  1. 01Tailwind CSS Tabs with Sliding Underline Indicator
  2. 02Neon Glow Tailwind Tabs with Per-Tab Accent Colors
  3. 03Neo-Brutalist Tailwind Tabs with Press Effect
  4. 04Color-Coded Tailwind CSS Tabs Component
  5. 05VS Code Style File Tabs in Tailwind CSS
  6. 06iOS Segmented Control in Tailwind CSS
  7. 07Bento Grid Card Tabs in Tailwind CSS
  8. 08Vertical Tabs with Timeline Progress in Tailwind CSS
  9. 09Terminal Window Tabs in Tailwind CSS (Retro CRT)
  10. 10Expanding Icon Tabs in Tailwind CSS
  11. 11Typewriter Animation Tabs in Tailwind CSS
  12. 12Tailwind Tabs with Particle Burst Animation
  13. 13Animated Counter Tabs in Tailwind CSS (Type Specimen)
  14. 14Oversized Cropped Text Tabs in Tailwind CSS
  15. 15Tailwind Sidebar Navigation with Sliding Indicator
  16. 16Tailwind Bottom Navigation Bar with Expanding Labels
  17. 17Variable Font Weight Tabs in Tailwind CSS
  18. 18Uppercase Tabs with Thick Sliding Bar in Tailwind CSS
  19. 19Drop Cap Initial Letter Tabs in Tailwind CSS
  20. 20Industrial Stencil Tabs in Tailwind CSS
  21. 21Bracket Selection Tabs in Tailwind CSS
  22. 22Bauhaus Color Block Tabs in Tailwind CSS
  23. 23Inverted Rubber Stamp Tabs in Tailwind CSS
  24. 24Outlined Tabs with Corner Markers in Tailwind CSS
  25. 25Tailwind Pill Tab Bar with Icons
  26. 26Risograph Print Effect Tabs in Tailwind CSS
  27. 27Animated SVG Underline Tabs in Tailwind CSS
  28. 28Font Specimen Glyph Tabs in Tailwind CSS
  29. 29Sliding Pill Tabs with Icons in Tailwind CSS
  30. 30Folded Corner Tabs in Tailwind CSS (clip-path)
  31. 31Bookmark Ribbon Navigation in Tailwind CSS
  32. 32Neumorphic Inset Tabs in Tailwind CSS
Tailwind v4MIT licensed

Tailwind Tabs with Particle Burst Animation

Selecting a tab fires eight coloured sparks outward from its label while a coral underline slides beneath. The original spawned DOM nodes in JavaScript and removed them with timers; the port keeps eight sparks per tab and starts their animation with group-has-checked/tab:animate-ttb12-burst — an animation restarts whenever its selector starts matching.

Live Demo
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The code

<section class="ttb-12 group/tabs grid min-h-svh w-full place-items-center bg-ttb12-bg bg-[radial-gradient(60%_45%_at_50%_45%,var(--color-ttb12-glow),transparent)] px-5 py-14 font-ttb12-sans text-ttb12-ink" aria-label="Particle burst tabs demo">
  <div class="grid w-full max-w-md justify-items-center gap-9">
    <div role="radiogroup" aria-label="Effect" class="relative flex w-full border-b border-white/10 [--i:0] has-[#ttb12-r2:checked]:[--i:1] has-[#ttb12-r3:checked]:[--i:2] has-[#ttb12-r4:checked]:[--i:3]">
      <label class="group/tab relative flex min-h-12 flex-1 cursor-pointer items-center justify-center text-[13px] font-semibold tracking-[0.04em] text-ttb12-mut transition-colors hover:text-ttb12-ink has-checked:text-ttb12-coral has-focus-visible:outline-2 has-focus-visible:-outline-offset-2 has-focus-visible:outline-ttb12-coral"><input class="sr-only" type="radio" name="ttb12" id="ttb12-r1" checked>Spark<span aria-hidden="true" class="pointer-events-none absolute top-1/2 left-1/2 motion-reduce:hidden"><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:42px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:30px] [--dy:30px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:0px] [--dy:38px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s4 opacity-0 [--dx:-31px] [--dy:31px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s5 opacity-0 [--dx:-44px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:-29px] [--dy:-29px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:0px] [--dy:-40px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:32px] [--dy:-32px] group-has-checked/tab:animate-ttb12-burst"></i></span></label>
      <label class="group/tab relative flex min-h-12 flex-1 cursor-pointer items-center justify-center text-[13px] font-semibold tracking-[0.04em] text-ttb12-mut transition-colors hover:text-ttb12-ink has-checked:text-ttb12-coral has-focus-visible:outline-2 has-focus-visible:-outline-offset-2 has-focus-visible:outline-ttb12-coral"><input class="sr-only" type="radio" name="ttb12" id="ttb12-r2">Bloom<span aria-hidden="true" class="pointer-events-none absolute top-1/2 left-1/2 motion-reduce:hidden"><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:42px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:30px] [--dy:30px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:0px] [--dy:38px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s4 opacity-0 [--dx:-31px] [--dy:31px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s5 opacity-0 [--dx:-44px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:-29px] [--dy:-29px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:0px] [--dy:-40px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:32px] [--dy:-32px] group-has-checked/tab:animate-ttb12-burst"></i></span></label>
      <label class="group/tab relative flex min-h-12 flex-1 cursor-pointer items-center justify-center text-[13px] font-semibold tracking-[0.04em] text-ttb12-mut transition-colors hover:text-ttb12-ink has-checked:text-ttb12-coral has-focus-visible:outline-2 has-focus-visible:-outline-offset-2 has-focus-visible:outline-ttb12-coral"><input class="sr-only" type="radio" name="ttb12" id="ttb12-r3">Burst<span aria-hidden="true" class="pointer-events-none absolute top-1/2 left-1/2 motion-reduce:hidden"><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:42px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:30px] [--dy:30px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:0px] [--dy:38px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s4 opacity-0 [--dx:-31px] [--dy:31px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s5 opacity-0 [--dx:-44px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:-29px] [--dy:-29px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:0px] [--dy:-40px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:32px] [--dy:-32px] group-has-checked/tab:animate-ttb12-burst"></i></span></label>
      <label class="group/tab relative flex min-h-12 flex-1 cursor-pointer items-center justify-center text-[13px] font-semibold tracking-[0.04em] text-ttb12-mut transition-colors hover:text-ttb12-ink has-checked:text-ttb12-coral has-focus-visible:outline-2 has-focus-visible:-outline-offset-2 has-focus-visible:outline-ttb12-coral"><input class="sr-only" type="radio" name="ttb12" id="ttb12-r4">Flare<span aria-hidden="true" class="pointer-events-none absolute top-1/2 left-1/2 motion-reduce:hidden"><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:42px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:30px] [--dy:30px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:0px] [--dy:38px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s4 opacity-0 [--dx:-31px] [--dy:31px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s5 opacity-0 [--dx:-44px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:-29px] [--dy:-29px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:0px] [--dy:-40px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:32px] [--dy:-32px] group-has-checked/tab:animate-ttb12-burst"></i></span></label>
      <span aria-hidden="true" class="pointer-events-none absolute -bottom-px left-0 h-0.5 w-1/4 translate-x-[calc(var(--i)*100%)] rounded-full bg-ttb12-coral shadow-[0_0_12px_var(--color-ttb12-coral)] transition-transform duration-400 ease-[cubic-bezier(0.65,0,0.35,1)] motion-reduce:transition-none"></span>
    </div>
    <p aria-hidden="true" class="rounded-full border border-white/10 px-3.5 py-2 font-ttb12-mono text-[11.5px] text-ttb12-mut">group-has-checked/tab:animate-burst · [--dx] [--dy] · 0 timers</p>
  </div>
</section>
@import "tailwindcss";

@theme {
  --color-ttb12-bg: #1a1322;
  --color-ttb12-bg: oklch(0.203 0.031 305.2);
  --color-ttb12-glow: #2c1d38;
  --color-ttb12-glow: oklch(0.263 0.053 308.7);
  --color-ttb12-ink: #f7f1fa;
  --color-ttb12-ink: oklch(0.965 0.013 314.8);
  --color-ttb12-mut: #ab9fb8;
  --color-ttb12-mut: oklch(0.721 0.038 307.0);
  --color-ttb12-coral: #ff7a7a;
  --color-ttb12-coral: oklch(0.735 0.163 21.9);
  --color-ttb12-s1: #ff6b6b;
  --color-ttb12-s1: oklch(0.712 0.181 22.8);
  --color-ttb12-s2: #ffd166;
  --color-ttb12-s2: oklch(0.880 0.135 86.1);
  --color-ttb12-s3: #06d6a0;
  --color-ttb12-s3: oklch(0.777 0.160 166.6);
  --color-ttb12-s4: #4cc9f0;
  --color-ttb12-s4: oklch(0.782 0.121 222.5);
  --color-ttb12-s5: #ef476f;
  --color-ttb12-s5: oklch(0.648 0.204 11.1);
  --font-ttb12-sans: 'Geist', system-ui, sans-serif;
  --font-ttb12-mono: 'Geist Mono', ui-monospace, monospace;
  --animate-ttb12-burst: ttb12-burst 0.6s cubic-bezier(0.2, 0.6, 0.4, 1) both;

  @keyframes ttb12-burst {
    from {
      opacity: 1;
      translate: 0 0;
      scale: 1;
    }

    to {
      opacity: 0;
      translate: var(--dx) var(--dy);
      scale: 0.3;
    }
  }
}
/* Root rule: the full-bleed contract, stated in CSS as well as in the markup's utilities, so the
   stage is sized before the browser build compiles. */

.ttb-12 {
  width: 100%;
  min-height: 100svh;
}

Setup — do this once per project

Skip this if your project already runs Tailwind v4.

1Load Tailwind
<script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>

Compiles in the browser — perfect for a CodePen or a quick test, not for production.

2Add the stylesheetRequiredthe @theme block is what makes the custom utilities exist
@import "tailwindcss";

@theme {
  --color-ttb12-bg: #1a1322;
  --color-ttb12-bg: oklch(0.203 0.031 305.2);
  --color-ttb12-glow: #2c1d38;
  --color-ttb12-glow: oklch(0.263 0.053 308.7);
  --color-ttb12-ink: #f7f1fa;
  --color-ttb12-ink: oklch(0.965 0.013 314.8);
  --color-ttb12-mut: #ab9fb8;
  --color-ttb12-mut: oklch(0.721 0.038 307.0);
  --color-ttb12-coral: #ff7a7a;
  --color-ttb12-coral: oklch(0.735 0.163 21.9);
  --color-ttb12-s1: #ff6b6b;
  --color-ttb12-s1: oklch(0.712 0.181 22.8);
  --color-ttb12-s2: #ffd166;
  --color-ttb12-s2: oklch(0.880 0.135 86.1);
  --color-ttb12-s3: #06d6a0;
  --color-ttb12-s3: oklch(0.777 0.160 166.6);
  --color-ttb12-s4: #4cc9f0;
  --color-ttb12-s4: oklch(0.782 0.121 222.5);
  --color-ttb12-s5: #ef476f;
  --color-ttb12-s5: oklch(0.648 0.204 11.1);
  --font-ttb12-sans: 'Geist', system-ui, sans-serif;
  --font-ttb12-mono: 'Geist Mono', ui-monospace, monospace;
  --animate-ttb12-burst: ttb12-burst 0.6s cubic-bezier(0.2, 0.6, 0.4, 1) both;

  @keyframes ttb12-burst {
    from {
      opacity: 1;
      translate: 0 0;
      scale: 1;
    }

    to {
      opacity: 0;
      translate: var(--dx) var(--dy);
      scale: 0.3;
    }
  }
}
/* Root rule: the full-bleed contract, stated in CSS as well as in the markup's utilities, so the
   stage is sized before the browser build compiles. */

.ttb-12 {
  width: 100%;
  min-height: 100svh;
}
3Fonts used by this demooptional — skip if you have your own type stack
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Geist:wght@400..800&family=Geist+Mono:wght@400..600&display=swap">

What changed in the port

Which parts became utilities, which stayed CSS, and why.

  • The spark spawner (createElement, getBoundingClientRect, setTimeout cleanup) was replaced by eight static sparks per tab whose animation starts with group-has-checked/tab:animate-ttb12-burst.
  • The underline's measuring script became the index trick: w-1/4 translate-x-[calc(var(--i)*100%)].
  • UI upgrade from the CSS original: no forced layout read per click (the original measured two rects on every tap), so rapid clicking stays well inside INP budgets; the underline gained a soft coral glow.
  • UI upgrade: resting labels moved from 55% white to a 6.4:1 token, and under reduced motion the spark layer is removed entirely (motion-reduce:hidden).
Paste this into ChatGPT, Claude, Cursor, or any coding assistant. The block below is pre-framed with everything the AI needs to integrate this demo into your project — markup, styles, scoping notes, and the source URL. Hit Copy and paste straight into your chat.
Here's a working CSS demo from CodeFronts. Use it as-is or adapt to your framework. All classes are scoped under a unique prefix so the code won't collide with your existing styles. MIT licensed.
Demo: Tailwind Tabs with Particle Burst Animation
Source: https://codefronts.com/navigation/tailwind-css-tabs/tailwind-tabs-particle-burst-animation/

Selecting a tab fires eight coloured sparks outward from its label while a coral underline slides beneath. The original spawned DOM nodes in JavaScript and removed them with timers; the port keeps eight sparks per tab and starts their animation with group-has-checked/tab:animate-ttb12-burst — an animation restarts whenever its selector starts matching.
## HTML
```html
<section class="ttb-12 group/tabs grid min-h-svh w-full place-items-center bg-ttb12-bg bg-[radial-gradient(60%_45%_at_50%_45%,var(--color-ttb12-glow),transparent)] px-5 py-14 font-ttb12-sans text-ttb12-ink" aria-label="Particle burst tabs demo">
  <div class="grid w-full max-w-md justify-items-center gap-9">
    <div role="radiogroup" aria-label="Effect" class="relative flex w-full border-b border-white/10 [--i:0] has-[#ttb12-r2:checked]:[--i:1] has-[#ttb12-r3:checked]:[--i:2] has-[#ttb12-r4:checked]:[--i:3]">
      <label class="group/tab relative flex min-h-12 flex-1 cursor-pointer items-center justify-center text-[13px] font-semibold tracking-[0.04em] text-ttb12-mut transition-colors hover:text-ttb12-ink has-checked:text-ttb12-coral has-focus-visible:outline-2 has-focus-visible:-outline-offset-2 has-focus-visible:outline-ttb12-coral"><input class="sr-only" type="radio" name="ttb12" id="ttb12-r1" checked>Spark<span aria-hidden="true" class="pointer-events-none absolute top-1/2 left-1/2 motion-reduce:hidden"><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:42px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:30px] [--dy:30px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:0px] [--dy:38px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s4 opacity-0 [--dx:-31px] [--dy:31px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s5 opacity-0 [--dx:-44px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:-29px] [--dy:-29px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:0px] [--dy:-40px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:32px] [--dy:-32px] group-has-checked/tab:animate-ttb12-burst"></i></span></label>
      <label class="group/tab relative flex min-h-12 flex-1 cursor-pointer items-center justify-center text-[13px] font-semibold tracking-[0.04em] text-ttb12-mut transition-colors hover:text-ttb12-ink has-checked:text-ttb12-coral has-focus-visible:outline-2 has-focus-visible:-outline-offset-2 has-focus-visible:outline-ttb12-coral"><input class="sr-only" type="radio" name="ttb12" id="ttb12-r2">Bloom<span aria-hidden="true" class="pointer-events-none absolute top-1/2 left-1/2 motion-reduce:hidden"><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:42px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:30px] [--dy:30px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:0px] [--dy:38px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s4 opacity-0 [--dx:-31px] [--dy:31px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s5 opacity-0 [--dx:-44px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:-29px] [--dy:-29px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:0px] [--dy:-40px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:32px] [--dy:-32px] group-has-checked/tab:animate-ttb12-burst"></i></span></label>
      <label class="group/tab relative flex min-h-12 flex-1 cursor-pointer items-center justify-center text-[13px] font-semibold tracking-[0.04em] text-ttb12-mut transition-colors hover:text-ttb12-ink has-checked:text-ttb12-coral has-focus-visible:outline-2 has-focus-visible:-outline-offset-2 has-focus-visible:outline-ttb12-coral"><input class="sr-only" type="radio" name="ttb12" id="ttb12-r3">Burst<span aria-hidden="true" class="pointer-events-none absolute top-1/2 left-1/2 motion-reduce:hidden"><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:42px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:30px] [--dy:30px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:0px] [--dy:38px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s4 opacity-0 [--dx:-31px] [--dy:31px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s5 opacity-0 [--dx:-44px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:-29px] [--dy:-29px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:0px] [--dy:-40px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:32px] [--dy:-32px] group-has-checked/tab:animate-ttb12-burst"></i></span></label>
      <label class="group/tab relative flex min-h-12 flex-1 cursor-pointer items-center justify-center text-[13px] font-semibold tracking-[0.04em] text-ttb12-mut transition-colors hover:text-ttb12-ink has-checked:text-ttb12-coral has-focus-visible:outline-2 has-focus-visible:-outline-offset-2 has-focus-visible:outline-ttb12-coral"><input class="sr-only" type="radio" name="ttb12" id="ttb12-r4">Flare<span aria-hidden="true" class="pointer-events-none absolute top-1/2 left-1/2 motion-reduce:hidden"><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:42px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:30px] [--dy:30px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:0px] [--dy:38px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s4 opacity-0 [--dx:-31px] [--dy:31px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s5 opacity-0 [--dx:-44px] [--dy:0px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s1 opacity-0 [--dx:-29px] [--dy:-29px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s2 opacity-0 [--dx:0px] [--dy:-40px] group-has-checked/tab:animate-ttb12-burst"></i><i class="absolute -top-[3px] -left-[3px] size-1.5 rounded-full bg-ttb12-s3 opacity-0 [--dx:32px] [--dy:-32px] group-has-checked/tab:animate-ttb12-burst"></i></span></label>
      <span aria-hidden="true" class="pointer-events-none absolute -bottom-px left-0 h-0.5 w-1/4 translate-x-[calc(var(--i)*100%)] rounded-full bg-ttb12-coral shadow-[0_0_12px_var(--color-ttb12-coral)] transition-transform duration-400 ease-[cubic-bezier(0.65,0,0.35,1)] motion-reduce:transition-none"></span>
    </div>
    <p aria-hidden="true" class="rounded-full border border-white/10 px-3.5 py-2 font-ttb12-mono text-[11.5px] text-ttb12-mut">group-has-checked/tab:animate-burst · [--dx] [--dy] · 0 timers</p>
  </div>
</section>
```
## CSS
```css
@import "tailwindcss";

@theme {
  --color-ttb12-bg: #1a1322;
  --color-ttb12-bg: oklch(0.203 0.031 305.2);
  --color-ttb12-glow: #2c1d38;
  --color-ttb12-glow: oklch(0.263 0.053 308.7);
  --color-ttb12-ink: #f7f1fa;
  --color-ttb12-ink: oklch(0.965 0.013 314.8);
  --color-ttb12-mut: #ab9fb8;
  --color-ttb12-mut: oklch(0.721 0.038 307.0);
  --color-ttb12-coral: #ff7a7a;
  --color-ttb12-coral: oklch(0.735 0.163 21.9);
  --color-ttb12-s1: #ff6b6b;
  --color-ttb12-s1: oklch(0.712 0.181 22.8);
  --color-ttb12-s2: #ffd166;
  --color-ttb12-s2: oklch(0.880 0.135 86.1);
  --color-ttb12-s3: #06d6a0;
  --color-ttb12-s3: oklch(0.777 0.160 166.6);
  --color-ttb12-s4: #4cc9f0;
  --color-ttb12-s4: oklch(0.782 0.121 222.5);
  --color-ttb12-s5: #ef476f;
  --color-ttb12-s5: oklch(0.648 0.204 11.1);
  --font-ttb12-sans: 'Geist', system-ui, sans-serif;
  --font-ttb12-mono: 'Geist Mono', ui-monospace, monospace;
  --animate-ttb12-burst: ttb12-burst 0.6s cubic-bezier(0.2, 0.6, 0.4, 1) both;

  @keyframes ttb12-burst {
    from {
      opacity: 1;
      translate: 0 0;
      scale: 1;
    }

    to {
      opacity: 0;
      translate: var(--dx) var(--dy);
      scale: 0.3;
    }
  }
}
/* Root rule: the full-bleed contract, stated in CSS as well as in the markup's utilities, so the
   stage is sized before the browser build compiles. */

.ttb-12 {
  width: 100%;
  min-height: 100svh;
}
```

How this works

CSS already knows when a tab is chosen. An animation applied by a selector starts the moment that selector begins to match. So each tab carries its sparks, and checking the tab starts them:

<span class="absolute top-1/2 left-1/2 size-1.5 rounded-full opacity-0
  [--dx:28px] [--dy:-28px] bg-ttb12-s2
  group-has-checked/tab:animate-ttb12-burst"></span>

No cleanup. animation-fill-mode: both leaves each spark invisible at the end, so nothing accumulates — the original needed a 700ms setTimeout per spark.

Make it yours

  • Fewer sparks for a quieter UI: delete spans; six evenly spaced angles still read as a burst.
  • Bigger burst: scale every --dx/--dy pair by 1.5.
  • Brand confetti: re-point the five --color-ttb12-s* tokens.

Gotchas — read before shipping

  • The default-checked tab bursts once on page load; remove its sparks' group-has-checked class if that's unwanted.
  • Sparks extend ~45px outside the label — keep overflow-visible on the row.
  • Thirty-two decorative spans are aria-hidden; they never reach the accessibility tree.

Browser support

ChromeSafariFirefoxEdge
111+16.4+128+111+

Custom properties inside keyframes and the standalone translate/scale properties are inside Tailwind v4's floor.

Techniques used in this demo

Utilitiesfirst-class utility or variant

:has()tw ↗prefers-reduced-motiontw ↗

Theme tokensset in @theme, used by a utility

custom propertiestw ↗

Plain CSSno Tailwind surface

@keyframestw ↗

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