Pure TailwindMIT licensed

Tailwind Image Radio Button Selector (Arch Mask)

A destination picker where photography is the control: each option is a photo in a tall arch. Unselected images rest desaturated; picking one blooms it to full colour, relaxes the arch into a soft rounded card and slides the caption up. The mask morph is just rounded-[85px_85px_18px_18px] → group-has-checked:rounded-[26px] — border-radius interpolates natively.

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The code

<section class="trb-19 w-full min-h-svh grid place-items-center bg-trb19-bg px-6 py-14 font-trb19-sans text-trb19-ink" aria-label="Image clip mask option selector demo">
  <fieldset>
    <legend class="text-center font-trb19-serif text-[40px] leading-none italic">Where to next?</legend>
    <div class="mt-9 flex flex-wrap justify-center gap-6">
      <label class="group relative cursor-pointer">
        <input type="radio" name="trb-19" value="alps" class="sr-only" checked>
        <span class="relative block h-[16.5rem] w-44 overflow-hidden rounded-[88px_88px_18px_18px] transition-[border-radius,translate,box-shadow] duration-500 ease-trb19-relax group-has-checked:rounded-[26px] group-has-checked:shadow-trb19-lift group-has-focus-visible:outline-3 group-has-focus-visible:outline-offset-4 group-has-focus-visible:outline-trb19-ink motion-safe:group-has-checked:-translate-y-1.5">
          <img class="size-full scale-108 object-cover brightness-65 grayscale transition-[filter,scale] duration-550 ease-trb19-relax group-hover:brightness-85 group-hover:grayscale-40 group-has-checked:scale-100 group-has-checked:brightness-100 group-has-checked:grayscale-0 motion-reduce:transition-[filter]" src="https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=480&q=80&auto=format&fit=crop" alt="Snow-capped alpine peaks at dawn" loading="lazy">
          <span class="absolute inset-x-0 bottom-0 grid translate-y-2.5 bg-linear-to-b from-transparent to-black/75 px-3.5 pt-8 pb-3 text-center opacity-80 transition-[translate,opacity] duration-400 group-has-checked:translate-y-0 group-has-checked:opacity-100"><span class="font-trb19-serif text-[22px] leading-tight text-white">The Alps</span><span class="text-xs text-white/85">7 nights · from $1,240</span></span>
        </span>
      </label>
      <label class="group relative cursor-pointer">
        <input type="radio" name="trb-19" value="coast" class="sr-only">
        <span class="relative block h-[16.5rem] w-44 overflow-hidden rounded-[88px_88px_18px_18px] transition-[border-radius,translate,box-shadow] duration-500 ease-trb19-relax group-has-checked:rounded-[26px] group-has-checked:shadow-trb19-lift group-has-focus-visible:outline-3 group-has-focus-visible:outline-offset-4 group-has-focus-visible:outline-trb19-ink motion-safe:group-has-checked:-translate-y-1.5">
          <img class="size-full scale-108 object-cover brightness-65 grayscale transition-[filter,scale] duration-550 ease-trb19-relax group-hover:brightness-85 group-hover:grayscale-40 group-has-checked:scale-100 group-has-checked:brightness-100 group-has-checked:grayscale-0 motion-reduce:transition-[filter]" src="https://images.unsplash.com/photo-1507525428034-b723cf961d3e?w=480&q=80&auto=format&fit=crop" alt="Turquoise water on a white sand beach" loading="lazy">
          <span class="absolute inset-x-0 bottom-0 grid translate-y-2.5 bg-linear-to-b from-transparent to-black/75 px-3.5 pt-8 pb-3 text-center opacity-80 transition-[translate,opacity] duration-400 group-has-checked:translate-y-0 group-has-checked:opacity-100"><span class="font-trb19-serif text-[22px] leading-tight text-white">The Coast</span><span class="text-xs text-white/85">5 nights · from $980</span></span>
        </span>
      </label>
      <label class="group relative cursor-pointer">
        <input type="radio" name="trb-19" value="forest" class="sr-only">
        <span class="relative block h-[16.5rem] w-44 overflow-hidden rounded-[88px_88px_18px_18px] transition-[border-radius,translate,box-shadow] duration-500 ease-trb19-relax group-has-checked:rounded-[26px] group-has-checked:shadow-trb19-lift group-has-focus-visible:outline-3 group-has-focus-visible:outline-offset-4 group-has-focus-visible:outline-trb19-ink motion-safe:group-has-checked:-translate-y-1.5">
          <img class="size-full scale-108 object-cover brightness-65 grayscale transition-[filter,scale] duration-550 ease-trb19-relax group-hover:brightness-85 group-hover:grayscale-40 group-has-checked:scale-100 group-has-checked:brightness-100 group-has-checked:grayscale-0 motion-reduce:transition-[filter]" src="https://images.unsplash.com/photo-1441974231531-c6227db76b6e?w=480&q=80&auto=format&fit=crop" alt="Sunlight through a tall green forest" loading="lazy">
          <span class="absolute inset-x-0 bottom-0 grid translate-y-2.5 bg-linear-to-b from-transparent to-black/75 px-3.5 pt-8 pb-3 text-center opacity-80 transition-[translate,opacity] duration-400 group-has-checked:translate-y-0 group-has-checked:opacity-100"><span class="font-trb19-serif text-[22px] leading-tight text-white">The Forest</span><span class="text-xs text-white/85">4 nights · from $760</span></span>
        </span>
      </label>
    </div>
  </fieldset>
</section>
@import "tailwindcss";

@theme {
  --color-trb19-bg: #141210;
  --color-trb19-bg: oklch(0.19 0.006 70);
  --color-trb19-ink: #f4efe8;
  --color-trb19-ink: oklch(0.955 0.01 75);
  --shadow-trb19-lift: 0 26px 50px -22px oklch(0 0 0 / 0.85);
  --ease-trb19-relax: cubic-bezier(0.22, 1, 0.36, 1);
  --font-trb19-serif: 'Instrument Serif', Georgia, serif;
  --font-trb19-sans: 'Geist', system-ui, sans-serif;
}
/* 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. */

.trb-19 {
  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-trb19-bg: #141210;
  --color-trb19-bg: oklch(0.19 0.006 70);
  --color-trb19-ink: #f4efe8;
  --color-trb19-ink: oklch(0.955 0.01 75);
  --shadow-trb19-lift: 0 26px 50px -22px oklch(0 0 0 / 0.85);
  --ease-trb19-relax: cubic-bezier(0.22, 1, 0.36, 1);
  --font-trb19-serif: 'Instrument Serif', Georgia, serif;
  --font-trb19-sans: 'Geist', system-ui, sans-serif;
}
/* 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. */

.trb-19 {
  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=Instrument+Serif:ital@0;1&family=Geist:wght@400..700&display=swap">

What changed in the port

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

  • filter:grayscale(1) brightness(.65) became two composable filter utilities; hover and checked each undo just the pieces they need.
  • The caption's hand-written linear-gradient(180deg,…) became v4's bg-linear-to-b from-transparent to-black/75.
  • UI upgrade from the CSS original: captions carry trip length and a from-price in two lines, and the legend moved to Instrument Serif italic for a travel-magazine voice.
  • UI upgrade: the lift is motion-safe:, and the arch radius (88px) now matches half the card width exactly so the top is a true semicircle.
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 Image Radio Button Selector (Arch Mask)
Source: https://codefronts.com/components/tailwind-css-radio-buttons/tailwind-image-radio-button-selector-arch-mask/

A destination picker where photography is the control: each option is a photo in a tall arch. Unselected images rest desaturated; picking one blooms it to full colour, relaxes the arch into a soft rounded card and slides the caption up. The mask morph is just rounded-[85px_85px_18px_18px] → group-has-checked:rounded-[26px] — border-radius interpolates natively.
## HTML
```html
<section class="trb-19 w-full min-h-svh grid place-items-center bg-trb19-bg px-6 py-14 font-trb19-sans text-trb19-ink" aria-label="Image clip mask option selector demo">
  <fieldset>
    <legend class="text-center font-trb19-serif text-[40px] leading-none italic">Where to next?</legend>
    <div class="mt-9 flex flex-wrap justify-center gap-6">
      <label class="group relative cursor-pointer">
        <input type="radio" name="trb-19" value="alps" class="sr-only" checked>
        <span class="relative block h-[16.5rem] w-44 overflow-hidden rounded-[88px_88px_18px_18px] transition-[border-radius,translate,box-shadow] duration-500 ease-trb19-relax group-has-checked:rounded-[26px] group-has-checked:shadow-trb19-lift group-has-focus-visible:outline-3 group-has-focus-visible:outline-offset-4 group-has-focus-visible:outline-trb19-ink motion-safe:group-has-checked:-translate-y-1.5">
          <img class="size-full scale-108 object-cover brightness-65 grayscale transition-[filter,scale] duration-550 ease-trb19-relax group-hover:brightness-85 group-hover:grayscale-40 group-has-checked:scale-100 group-has-checked:brightness-100 group-has-checked:grayscale-0 motion-reduce:transition-[filter]" src="https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=480&q=80&auto=format&fit=crop" alt="Snow-capped alpine peaks at dawn" loading="lazy">
          <span class="absolute inset-x-0 bottom-0 grid translate-y-2.5 bg-linear-to-b from-transparent to-black/75 px-3.5 pt-8 pb-3 text-center opacity-80 transition-[translate,opacity] duration-400 group-has-checked:translate-y-0 group-has-checked:opacity-100"><span class="font-trb19-serif text-[22px] leading-tight text-white">The Alps</span><span class="text-xs text-white/85">7 nights · from $1,240</span></span>
        </span>
      </label>
      <label class="group relative cursor-pointer">
        <input type="radio" name="trb-19" value="coast" class="sr-only">
        <span class="relative block h-[16.5rem] w-44 overflow-hidden rounded-[88px_88px_18px_18px] transition-[border-radius,translate,box-shadow] duration-500 ease-trb19-relax group-has-checked:rounded-[26px] group-has-checked:shadow-trb19-lift group-has-focus-visible:outline-3 group-has-focus-visible:outline-offset-4 group-has-focus-visible:outline-trb19-ink motion-safe:group-has-checked:-translate-y-1.5">
          <img class="size-full scale-108 object-cover brightness-65 grayscale transition-[filter,scale] duration-550 ease-trb19-relax group-hover:brightness-85 group-hover:grayscale-40 group-has-checked:scale-100 group-has-checked:brightness-100 group-has-checked:grayscale-0 motion-reduce:transition-[filter]" src="https://images.unsplash.com/photo-1507525428034-b723cf961d3e?w=480&q=80&auto=format&fit=crop" alt="Turquoise water on a white sand beach" loading="lazy">
          <span class="absolute inset-x-0 bottom-0 grid translate-y-2.5 bg-linear-to-b from-transparent to-black/75 px-3.5 pt-8 pb-3 text-center opacity-80 transition-[translate,opacity] duration-400 group-has-checked:translate-y-0 group-has-checked:opacity-100"><span class="font-trb19-serif text-[22px] leading-tight text-white">The Coast</span><span class="text-xs text-white/85">5 nights · from $980</span></span>
        </span>
      </label>
      <label class="group relative cursor-pointer">
        <input type="radio" name="trb-19" value="forest" class="sr-only">
        <span class="relative block h-[16.5rem] w-44 overflow-hidden rounded-[88px_88px_18px_18px] transition-[border-radius,translate,box-shadow] duration-500 ease-trb19-relax group-has-checked:rounded-[26px] group-has-checked:shadow-trb19-lift group-has-focus-visible:outline-3 group-has-focus-visible:outline-offset-4 group-has-focus-visible:outline-trb19-ink motion-safe:group-has-checked:-translate-y-1.5">
          <img class="size-full scale-108 object-cover brightness-65 grayscale transition-[filter,scale] duration-550 ease-trb19-relax group-hover:brightness-85 group-hover:grayscale-40 group-has-checked:scale-100 group-has-checked:brightness-100 group-has-checked:grayscale-0 motion-reduce:transition-[filter]" src="https://images.unsplash.com/photo-1441974231531-c6227db76b6e?w=480&q=80&auto=format&fit=crop" alt="Sunlight through a tall green forest" loading="lazy">
          <span class="absolute inset-x-0 bottom-0 grid translate-y-2.5 bg-linear-to-b from-transparent to-black/75 px-3.5 pt-8 pb-3 text-center opacity-80 transition-[translate,opacity] duration-400 group-has-checked:translate-y-0 group-has-checked:opacity-100"><span class="font-trb19-serif text-[22px] leading-tight text-white">The Forest</span><span class="text-xs text-white/85">4 nights · from $760</span></span>
        </span>
      </label>
    </div>
  </fieldset>
</section>
```
## CSS
```css
@import "tailwindcss";

@theme {
  --color-trb19-bg: #141210;
  --color-trb19-bg: oklch(0.19 0.006 70);
  --color-trb19-ink: #f4efe8;
  --color-trb19-ink: oklch(0.955 0.01 75);
  --shadow-trb19-lift: 0 26px 50px -22px oklch(0 0 0 / 0.85);
  --ease-trb19-relax: cubic-bezier(0.22, 1, 0.36, 1);
  --font-trb19-serif: 'Instrument Serif', Georgia, serif;
  --font-trb19-sans: 'Geist', system-ui, sans-serif;
}
/* 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. */

.trb-19 {
  width: 100%;
  min-height: 100svh;
}
```

How this works

No clip-path needed. An arch is a border-radius, and border-radius interpolates, so the mask morph is a plain transition on rounded-* values. v4's filter utilities (grayscale, brightness-65) compose into one filter, and their -0/-100 counterparts undo each piece.

Images are the labels. Every photo keeps real alt text inside the label, and the visible caption repeats the destination, so the option announces properly.

Make it yours

  • Swap the Unsplash URLs; any portrait crop works.
  • Checked shape: try group-has-checked:rounded-full for a pill.
  • Bloom speed: duration-550 on the image.

Gotchas — read before shipping

  • Selectable images need real alt text — an empty alt makes the option unusable by screen readers.
  • Filter the <img>, not the label, or the caption grays out too.
  • Use loading="lazy"; three photos above the fold cost LCP.

Browser support

ChromeSafariFirefoxEdge
111+16.4+128+111+

Border-radius morphing and filters are universal; :has() drives the bloom.

Techniques used in this demo

Search CodeFronts

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