36 Tailwind CSS Modals
28 / 36

All 36 in 36 Tailwind CSS Modals

  1. 01Tailwind Login / Signup Modal with Native Dialog & Starting-Style
  2. 02Tailwind Password Reset Modal with In-Place Success State
  3. 03Tailwind Age Verification Gate with :has() and Zero JavaScript
  4. 04Tailwind Paywall Modal with Masked Article Fade
  5. 05Tailwind Product Quick-View Modal with has-checked Variant Chips
  6. 06Tailwind Shopping Cart Slide-Over Drawer with Dialog
  7. 07Tailwind Timed Newsletter Promo Popup with Frequency Cap
  8. 08Tailwind Size Guide Overlay with Zero-JS cm/inch Toggle
  9. 09Tailwind Zero-JS Lightbox Gallery with the target Variant
  10. 10Tailwind Video Trailer Modal with Aspect-Locked Iframe
  11. 11Tailwind Destructive Delete Modal with Type-to-Confirm Gate
  12. 12Tailwind Success / Error Result Modal with Drawn SVG Icon
  13. 13Tailwind GDPR Cookie Consent Banner with details Disclosure
  14. 14Tailwind Multi-Step Onboarding Modal with data-step Variants
  15. 15Tailwind Filter & Sort Drawer that Becomes a Bottom Sheet
  16. 16Tailwind Contact Support Modal with Live Validation
  17. 17Tailwind Tabbed Settings Modal with Zero-JS Radio Tabs
  18. 18Tailwind Command Palette Modal with ⌘K and Roving Selection
  19. 19Tailwind Confirm Delete Modal with Corner Slide-and-Spin Entrance
  20. 20Tailwind Login Modal with Staggered Blur-In Content Drop
  21. 21Tailwind Signup Modal with 3D Origami Fan Deploy Panels
  22. 22Tailwind Payment Checkout Modal with 3D Paper Fold Entrance
  23. 23Tailwind HIPAA Patient Consent Modal with Scroll-Gated Agreement
  24. 24Tailwind Age Verification Modal with Clip-Path Iris Aperture
  25. 25Tailwind GDPR Cookie Preferences Modal with Unfolding Category Rows
  26. 26Tailwind Video Lightbox Modal with Chromatic Glitch Materialize
  27. 27Tailwind Image Gallery Lightbox with Clip-Path Diamond Reveal
  28. 28Tailwind Add to Cart Confirmation with SVG Liquid Morph Entrance
  29. 29Tailwind Product Quick View Modal with Elastic Button Morph
  30. 30Tailwind Newsletter Signup Modal with Depth-Layer Parallax Entrance
  31. 31Tailwind Exit-Intent Discount Modal with Live Countdown and Coupon Copy
  32. 32Tailwind Restaurant Reservation Modal with Cascading Fan Panels
  33. 33Tailwind Order Success Modal with CSS-Only Confetti Burst
  34. 34Tailwind SaaS Onboarding Welcome Modal with Cascading Blur-In
  35. 35Tailwind Terms of Service Modal with Letter-Slide and Consent Gate
  36. 36Tailwind Password Reset Modal with Enumeration-Safe Confirmation
Tailwind + JSMIT licensed

Tailwind Add to Cart Confirmation with SVG Liquid Morph Entrance

An e-commerce confirmation that blobs into existence: an SVG goo filter plus a 0.6→1 spring, with the filter dropped the instant the card settles so text renders crisp. The port carries the filter as [filter:url(#tw-10-goo)] and switches it off with open:[filter:none], keeping the whole effect in the class list.

Live Demo
Plain CSSTailwind v4
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The code

<section class="tw-10 w-full min-h-svh grid place-items-center bg-tw10-bg font-tw10-sans px-6 py-10">
  <svg width="0" height="0" class="absolute" aria-hidden="true">
    <defs>
      <filter id="tw-10-goo">
        <feGaussianBlur in="SourceGraphic" stdDeviation="8" result="blur"/>
        <feColorMatrix in="blur" mode="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 18 -7" result="goo"/>
        <feComposite in="SourceGraphic" in2="goo" operator="atop"/>
      </filter>
    </defs>
  </svg>

  <button type="button" data-tw10-open class="inline-flex items-center justify-center min-h-11 px-7 rounded-[9px] border-0 bg-tw10-brand text-[15px] font-bold text-white shadow-[0_10px_22px_-6px_var(--color-tw10-glow)] cursor-pointer transition-[background-color,translate] duration-200 hover:bg-tw10-branddark hover:-translate-y-px focus-visible:outline-2 focus-visible:outline-tw10-brand focus-visible:outline-offset-2 motion-reduce:hover:translate-y-0">Add to cart · $89</button>

  <dialog id="tw-10-dlg" aria-labelledby="tw-10-title" class="m-auto w-[min(460px,94vw)] p-0 border-0 rounded-2xl text-left text-tw10-ink bg-tw10-card shadow-[0_40px_60px_-20px_#1e293b59] opacity-0 scale-[0.6] [filter:url(#tw-10-goo)] transition-[opacity,scale,filter,overlay,display] duration-500 ease-[cubic-bezier(.34,1.56,.64,1)] [transition-delay:0ms,0ms,500ms] transition-discrete open:opacity-100 open:scale-100 open:[filter:none] open:starting:opacity-0 open:starting:scale-[0.6] open:backdrop:bg-tw10-scrim open:backdrop:backdrop-blur-[6px] motion-reduce:transition-[opacity] motion-reduce:duration-150 motion-reduce:scale-100 motion-reduce:[filter:none]">
    <div class="relative px-7 pt-7 pb-6">
      <button type="button" data-tw10-close aria-label="Close dialog" class="absolute top-3.5 right-3.5 grid place-items-center size-9 rounded-lg border-0 bg-transparent text-tw10-sub text-[15px] cursor-pointer transition-colors duration-200 hover:bg-tw10-well2 hover:text-tw10-ink focus-visible:outline-2 focus-visible:outline-tw10-brand focus-visible:outline-offset-2">&#10005;</button>

      <p class="inline-flex items-center gap-2 mb-3 py-1 pl-1.5 pr-3 rounded-full bg-tw10-goodtint text-xs font-bold uppercase tracking-wide text-tw10-good">
        <span aria-hidden="true" class="grid place-items-center size-5 rounded-full bg-tw10-good text-[11px] text-white">&#10003;</span>Added to cart
      </p>
      <h2 id="tw-10-title" class="mb-[18px] text-[1.35rem] font-extrabold tracking-[-0.015em] leading-tight">You're all set</h2>

      <div class="flex items-center gap-3.5 mb-3.5 p-3.5 rounded-xl border border-tw10-line bg-tw10-well">
        <span aria-hidden="true" data-tw10-thumb class="shrink-0 grid place-items-center size-18 rounded-[9px] text-[32px]">&#128095;</span>
        <div class="flex-1 min-w-0">
          <p class="mb-0.5 text-sm font-bold">Terra Runner · Slate / Coral</p>
          <p class="mb-0.5 text-xs text-tw10-sub">Size 10 · Qty 1</p>
          <p class="text-[15px] font-extrabold text-tw10-brand tabular-nums">$89.00</p>
        </div>
      </div>

      <div class="mb-4 px-4 py-3.5 rounded-[9px] border border-tw10-line">
        <div class="flex justify-between items-center text-sm"><span>Cart subtotal (2 items)</span><strong class="font-extrabold tabular-nums">$168.00</strong></div>
        <div class="flex justify-between items-center mt-2 pt-2 border-t border-tw10-line text-sm font-semibold text-tw10-good"><span>Free shipping unlocked</span><span aria-hidden="true">&#127881;</span></div>
      </div>

      <p aria-live="polite" class="sr-only">Terra Runner added to cart. Cart subtotal is $168.00 for 2 items.</p>

      <div class="grid grid-cols-2 gap-2.5">
        <button type="button" data-tw10-close class="min-h-11 rounded-[9px] border-0 bg-tw10-well2 text-sm font-bold text-tw10-ink cursor-pointer transition-[background-color,translate] duration-150 hover:bg-tw10-well3 active:translate-y-px focus-visible:outline-2 focus-visible:outline-tw10-ink focus-visible:outline-offset-2 motion-reduce:active:translate-y-0">Continue shopping</button>
        <button type="button" autofocus data-tw10-close class="min-h-11 rounded-[9px] border-0 bg-tw10-brand text-sm font-bold text-white cursor-pointer transition-[background-color,translate] duration-150 hover:bg-tw10-branddark active:translate-y-px focus-visible:outline-2 focus-visible:outline-tw10-brand focus-visible:outline-offset-2 motion-reduce:active:translate-y-0">View cart &rarr;</button>
      </div>
    </div>
  </dialog>
</section>
@import "tailwindcss";

@theme {
  --color-tw10-bg: #fdf7f4;
  --color-tw10-bg: oklch(0.97 0.012 40);
  --color-tw10-card: #ffffff;
  --color-tw10-card: oklch(1 0 0);
  --color-tw10-well: #fafbfc;
  --color-tw10-well: oklch(0.98 0.003 255);
  --color-tw10-well2: #f1f5f9;
  --color-tw10-well2: oklch(0.96 0.006 250);
  --color-tw10-well3: #e2e8f0;
  --color-tw10-well3: oklch(0.92 0.01 250);
  --color-tw10-ink: #1e293b;
  --color-tw10-ink: oklch(0.3 0.03 258);
  --color-tw10-sub: #55657c;
  --color-tw10-sub: oklch(0.5 0.03 255);
  --color-tw10-line: #eef1f5;
  --color-tw10-line: oklch(0.95 0.005 255);
  --color-tw10-brand: #e05252;
  --color-tw10-brand: oklch(0.62 0.17 22);
  --color-tw10-branddark: #c23e3e;
  --color-tw10-branddark: oklch(0.55 0.17 22);
  --color-tw10-glow: #ff6b6b80;
  --color-tw10-glow: oklch(0.7 0.17 22 / 0.5);
  --color-tw10-good: #047857;
  --color-tw10-good: oklch(0.52 0.12 164);
  --color-tw10-goodtint: #0596691f;
  --color-tw10-goodtint: oklch(0.63 0.14 163 / 0.12);
  --color-tw10-scrim: #1e293b80;
  --color-tw10-scrim: oklch(0.3 0.03 258 / 0.5);
  --font-tw10-sans: 'Outfit', system-ui, sans-serif;
}

.tw-10 {
  width: 100%;
}
/* Placeholder product swatch — swap for a real <img>. */

.tw-10 [data-tw10-thumb] {
  background-image: linear-gradient(135deg, oklch(0.93 0.04 350), oklch(0.95 0.06 90));
}

#tw-10-dlg::backdrop {
  background: oklch(0.3 0.03 258 / 0);
  backdrop-filter: blur(0px);
  transition: background .25s ease, backdrop-filter .25s ease, overlay .25s allow-discrete, display .25s allow-discrete;
}

@starting-style {
  #tw-10-dlg[open]::backdrop {
    background: oklch(0.3 0.03 258 / 0);
    backdrop-filter: blur(0px);
  }
}

@media (prefers-reduced-motion: reduce) {
  #tw-10-dlg::backdrop {
    transition-duration: .001s;
  }
}
(function () {
  var root = document.querySelector('.tw-10');
  var dlg = root.querySelector('#tw-10-dlg');
  var card = dlg.firstElementChild;
  root.querySelector('[data-tw10-open]').addEventListener('click', function () { dlg.showModal(); });
  root.querySelectorAll('[data-tw10-close]').forEach(function (b) {
    b.addEventListener('click', function () { dlg.close(); });
  });
  dlg.addEventListener('click', function (e) {
    var r = card.getBoundingClientRect();
    if (e.clientX < r.left || e.clientX > r.right || e.clientY < r.top || e.clientY > r.bottom) dlg.close();
  });
})();

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-tw10-bg: #fdf7f4;
  --color-tw10-bg: oklch(0.97 0.012 40);
  --color-tw10-card: #ffffff;
  --color-tw10-card: oklch(1 0 0);
  --color-tw10-well: #fafbfc;
  --color-tw10-well: oklch(0.98 0.003 255);
  --color-tw10-well2: #f1f5f9;
  --color-tw10-well2: oklch(0.96 0.006 250);
  --color-tw10-well3: #e2e8f0;
  --color-tw10-well3: oklch(0.92 0.01 250);
  --color-tw10-ink: #1e293b;
  --color-tw10-ink: oklch(0.3 0.03 258);
  --color-tw10-sub: #55657c;
  --color-tw10-sub: oklch(0.5 0.03 255);
  --color-tw10-line: #eef1f5;
  --color-tw10-line: oklch(0.95 0.005 255);
  --color-tw10-brand: #e05252;
  --color-tw10-brand: oklch(0.62 0.17 22);
  --color-tw10-branddark: #c23e3e;
  --color-tw10-branddark: oklch(0.55 0.17 22);
  --color-tw10-glow: #ff6b6b80;
  --color-tw10-glow: oklch(0.7 0.17 22 / 0.5);
  --color-tw10-good: #047857;
  --color-tw10-good: oklch(0.52 0.12 164);
  --color-tw10-goodtint: #0596691f;
  --color-tw10-goodtint: oklch(0.63 0.14 163 / 0.12);
  --color-tw10-scrim: #1e293b80;
  --color-tw10-scrim: oklch(0.3 0.03 258 / 0.5);
  --font-tw10-sans: 'Outfit', system-ui, sans-serif;
}

.tw-10 {
  width: 100%;
}
/* Placeholder product swatch — swap for a real <img>. */

.tw-10 [data-tw10-thumb] {
  background-image: linear-gradient(135deg, oklch(0.93 0.04 350), oklch(0.95 0.06 90));
}

#tw-10-dlg::backdrop {
  background: oklch(0.3 0.03 258 / 0);
  backdrop-filter: blur(0px);
  transition: background .25s ease, backdrop-filter .25s ease, overlay .25s allow-discrete, display .25s allow-discrete;
}

@starting-style {
  #tw-10-dlg[open]::backdrop {
    background: oklch(0.3 0.03 258 / 0);
    backdrop-filter: blur(0px);
  }
}

@media (prefers-reduced-motion: reduce) {
  #tw-10-dlg::backdrop {
    transition-duration: .001s;
  }
}
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=Outfit:wght@400;500;600;700;800&display=swap">

What changed in the port

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

  • The filter's on and off states are both utilities, and the per-property [transition-delay:0ms,0ms,500ms] is what sequences them — the original needed a hand-written three-part transition declaration to say the same thing.
  • The SVG filter definition stays in the markup, where it belongs: it is a document resource, not a style.
  • The auto-dismiss from the original is deliberately not ported. A timed close with no pause control is an accessibility failure, and the confirmation is cheap to dismiss manually.
  • The coral was darkened from #ff6b6b so white button text clears 4.5:1; the original's lighter coral failed on the primary action.
  • UI change from the CSS original: both actions are 44px in a two-column grid, prices are tabular-nums, and an sr-only live region announces what the filter cannot.
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 Add to Cart Confirmation with SVG Liquid Morph Entrance
Source: https://codefronts.com/components/tailwind-css-modals/tailwind-add-to-cart-modal-liquid-morph-metaball/

An e-commerce confirmation that blobs into existence: an SVG goo filter plus a 0.6&rarr;1 spring, with the filter dropped the instant the card settles so text renders crisp. The port carries the filter as [filter:url(#tw-10-goo)] and switches it off with open:[filter:none], keeping the whole effect in the class list.
## HTML
```html
<section class="tw-10 w-full min-h-svh grid place-items-center bg-tw10-bg font-tw10-sans px-6 py-10">
  <svg width="0" height="0" class="absolute" aria-hidden="true">
    <defs>
      <filter id="tw-10-goo">
        <feGaussianBlur in="SourceGraphic" stdDeviation="8" result="blur"/>
        <feColorMatrix in="blur" mode="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 18 -7" result="goo"/>
        <feComposite in="SourceGraphic" in2="goo" operator="atop"/>
      </filter>
    </defs>
  </svg>

  <button type="button" data-tw10-open class="inline-flex items-center justify-center min-h-11 px-7 rounded-[9px] border-0 bg-tw10-brand text-[15px] font-bold text-white shadow-[0_10px_22px_-6px_var(--color-tw10-glow)] cursor-pointer transition-[background-color,translate] duration-200 hover:bg-tw10-branddark hover:-translate-y-px focus-visible:outline-2 focus-visible:outline-tw10-brand focus-visible:outline-offset-2 motion-reduce:hover:translate-y-0">Add to cart · $89</button>

  <dialog id="tw-10-dlg" aria-labelledby="tw-10-title" class="m-auto w-[min(460px,94vw)] p-0 border-0 rounded-2xl text-left text-tw10-ink bg-tw10-card shadow-[0_40px_60px_-20px_#1e293b59] opacity-0 scale-[0.6] [filter:url(#tw-10-goo)] transition-[opacity,scale,filter,overlay,display] duration-500 ease-[cubic-bezier(.34,1.56,.64,1)] [transition-delay:0ms,0ms,500ms] transition-discrete open:opacity-100 open:scale-100 open:[filter:none] open:starting:opacity-0 open:starting:scale-[0.6] open:backdrop:bg-tw10-scrim open:backdrop:backdrop-blur-[6px] motion-reduce:transition-[opacity] motion-reduce:duration-150 motion-reduce:scale-100 motion-reduce:[filter:none]">
    <div class="relative px-7 pt-7 pb-6">
      <button type="button" data-tw10-close aria-label="Close dialog" class="absolute top-3.5 right-3.5 grid place-items-center size-9 rounded-lg border-0 bg-transparent text-tw10-sub text-[15px] cursor-pointer transition-colors duration-200 hover:bg-tw10-well2 hover:text-tw10-ink focus-visible:outline-2 focus-visible:outline-tw10-brand focus-visible:outline-offset-2">&#10005;</button>

      <p class="inline-flex items-center gap-2 mb-3 py-1 pl-1.5 pr-3 rounded-full bg-tw10-goodtint text-xs font-bold uppercase tracking-wide text-tw10-good">
        <span aria-hidden="true" class="grid place-items-center size-5 rounded-full bg-tw10-good text-[11px] text-white">&#10003;</span>Added to cart
      </p>
      <h2 id="tw-10-title" class="mb-[18px] text-[1.35rem] font-extrabold tracking-[-0.015em] leading-tight">You're all set</h2>

      <div class="flex items-center gap-3.5 mb-3.5 p-3.5 rounded-xl border border-tw10-line bg-tw10-well">
        <span aria-hidden="true" data-tw10-thumb class="shrink-0 grid place-items-center size-18 rounded-[9px] text-[32px]">&#128095;</span>
        <div class="flex-1 min-w-0">
          <p class="mb-0.5 text-sm font-bold">Terra Runner · Slate / Coral</p>
          <p class="mb-0.5 text-xs text-tw10-sub">Size 10 · Qty 1</p>
          <p class="text-[15px] font-extrabold text-tw10-brand tabular-nums">$89.00</p>
        </div>
      </div>

      <div class="mb-4 px-4 py-3.5 rounded-[9px] border border-tw10-line">
        <div class="flex justify-between items-center text-sm"><span>Cart subtotal (2 items)</span><strong class="font-extrabold tabular-nums">$168.00</strong></div>
        <div class="flex justify-between items-center mt-2 pt-2 border-t border-tw10-line text-sm font-semibold text-tw10-good"><span>Free shipping unlocked</span><span aria-hidden="true">&#127881;</span></div>
      </div>

      <p aria-live="polite" class="sr-only">Terra Runner added to cart. Cart subtotal is $168.00 for 2 items.</p>

      <div class="grid grid-cols-2 gap-2.5">
        <button type="button" data-tw10-close class="min-h-11 rounded-[9px] border-0 bg-tw10-well2 text-sm font-bold text-tw10-ink cursor-pointer transition-[background-color,translate] duration-150 hover:bg-tw10-well3 active:translate-y-px focus-visible:outline-2 focus-visible:outline-tw10-ink focus-visible:outline-offset-2 motion-reduce:active:translate-y-0">Continue shopping</button>
        <button type="button" autofocus data-tw10-close class="min-h-11 rounded-[9px] border-0 bg-tw10-brand text-sm font-bold text-white cursor-pointer transition-[background-color,translate] duration-150 hover:bg-tw10-branddark active:translate-y-px focus-visible:outline-2 focus-visible:outline-tw10-brand focus-visible:outline-offset-2 motion-reduce:active:translate-y-0">View cart &rarr;</button>
      </div>
    </div>
  </dialog>
</section>
```
## CSS
```css
@import "tailwindcss";

@theme {
  --color-tw10-bg: #fdf7f4;
  --color-tw10-bg: oklch(0.97 0.012 40);
  --color-tw10-card: #ffffff;
  --color-tw10-card: oklch(1 0 0);
  --color-tw10-well: #fafbfc;
  --color-tw10-well: oklch(0.98 0.003 255);
  --color-tw10-well2: #f1f5f9;
  --color-tw10-well2: oklch(0.96 0.006 250);
  --color-tw10-well3: #e2e8f0;
  --color-tw10-well3: oklch(0.92 0.01 250);
  --color-tw10-ink: #1e293b;
  --color-tw10-ink: oklch(0.3 0.03 258);
  --color-tw10-sub: #55657c;
  --color-tw10-sub: oklch(0.5 0.03 255);
  --color-tw10-line: #eef1f5;
  --color-tw10-line: oklch(0.95 0.005 255);
  --color-tw10-brand: #e05252;
  --color-tw10-brand: oklch(0.62 0.17 22);
  --color-tw10-branddark: #c23e3e;
  --color-tw10-branddark: oklch(0.55 0.17 22);
  --color-tw10-glow: #ff6b6b80;
  --color-tw10-glow: oklch(0.7 0.17 22 / 0.5);
  --color-tw10-good: #047857;
  --color-tw10-good: oklch(0.52 0.12 164);
  --color-tw10-goodtint: #0596691f;
  --color-tw10-goodtint: oklch(0.63 0.14 163 / 0.12);
  --color-tw10-scrim: #1e293b80;
  --color-tw10-scrim: oklch(0.3 0.03 258 / 0.5);
  --font-tw10-sans: 'Outfit', system-ui, sans-serif;
}

.tw-10 {
  width: 100%;
}
/* Placeholder product swatch — swap for a real <img>. */

.tw-10 [data-tw10-thumb] {
  background-image: linear-gradient(135deg, oklch(0.93 0.04 350), oklch(0.95 0.06 90));
}

#tw-10-dlg::backdrop {
  background: oklch(0.3 0.03 258 / 0);
  backdrop-filter: blur(0px);
  transition: background .25s ease, backdrop-filter .25s ease, overlay .25s allow-discrete, display .25s allow-discrete;
}

@starting-style {
  #tw-10-dlg[open]::backdrop {
    background: oklch(0.3 0.03 258 / 0);
    backdrop-filter: blur(0px);
  }
}

@media (prefers-reduced-motion: reduce) {
  #tw-10-dlg::backdrop {
    transition-duration: .001s;
  }
}
```

## JavaScript
```js
(function () {
  var root = document.querySelector('.tw-10');
  var dlg = root.querySelector('#tw-10-dlg');
  var card = dlg.firstElementChild;
  root.querySelector('[data-tw10-open]').addEventListener('click', function () { dlg.showModal(); });
  root.querySelectorAll('[data-tw10-close]').forEach(function (b) {
    b.addEventListener('click', function () { dlg.close(); });
  });
  dlg.addEventListener('click', function (e) {
    var r = card.getBoundingClientRect();
    if (e.clientX < r.left || e.clientX > r.right || e.clientY < r.top || e.clientY > r.bottom) dlg.close();
  });
})();
```

How this works

The goo is an SVG filter, applied and then removed. While the card scales up it passes through feGaussianBlur + feColorMatrix, which merges its edges like liquid; a delayed filter transition drops to none at settle so type is never soft in the resting state.

The spring is honest about its overshoot. cubic-bezier(.34,1.56,.64,1) passes ~10% beyond target — delightful on a success moment, which is exactly the context that earns it.

The confirmation names the item. A bare "Added to cart" is useless to someone who added three things quickly; the product row, size, quantity and running subtotal are the content, and the animation is the garnish.

Make it yours

  • Tune the blob with the filter's stdDeviation — 4 is a hint, 14 is dramatic, 20+ smears the type.
  • Tighten or loosen the merge via the alpha column of the colour matrix.
  • Add an auto-dismiss if your funnel wants one, with a pause-on-hover and a visible countdown.
  • Skip the auto-dismiss entirely on high-value carts — a $500 confirmation should wait for the shopper.

Gotchas — read before shipping

  • Remove the filter at settle. A permanently filtered card renders text through a threshold matrix, and small type turns to mush.
  • The filter is decorative and unreadable by assistive tech — the aria-live line is what actually communicates the cart change.
  • Keep the card background solid. The alpha threshold produces harsh fringes over translucent or photographic backgrounds.
  • An overshooting scale can briefly exceed a 320px viewport; test the small end or clamp the card width as here.
  • Auto-dismiss without a pause control is a WCAG 2.2.1 problem, not a conversion tactic.

Browser support

ChromeSafariFirefoxEdge
111+ · 117+ anim16.4+ · 17.5+ anim128+ · 129+ anim111+ · 117+ anim

SVG filter chains are universal since 2022; the @starting-style spring is the newer gate and degrades to an instant show.

Techniques used in this demo

Utilitiesfirst-class utility or variant

@starting-styletw ↗prefers-reduced-motiontw ↗

Theme tokensset in @theme, used by a utility

cubic bezier easingtw ↗

HTML & JSno Tailwind involved

<dialog>MDN ↗

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