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Added 13 Aug 2026
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ocean-crossfade-slideshow-13423
Ocean Crossfade Slideshow
Sliders & Carousels

Ocean Crossfade Slideshow

Slides stacked in place and dissolved between rather than translated, which keeps a full-bleed image from ever showing an edge, with the active dot stretching to a pill.

Sliders & Carouselscarouselcrossfadeslideshowdissolvedotsocean
lines of CSS
69lines of CSS
dependencies
0dependencies
browser, for years
Everybrowser, for years
stops under reduced motion
Guardedstops under reduced motion
Backdrop
Open a live copy in

Vue, Svelte, styled-components and Tailwind exports are part of Pro. HTML, CSS and React are free forever.

ocean-crossfade-slideshow-13423.css
.fx-v9-slider-crossfade-ocean-13422 {
  position: relative;
  width: 236px;
  height: 140px;
  overflow: hidden;
  border-radius: 0.6rem;
  background: #0b1120;
}
.fx-v9-slider-crossfade-ocean-13422 i {
  position: absolute;
  inset: 0;
  opacity: 0;
  animation: fx-v9-slider-crossfade-ocean-13422-fade 9s ease-in-out infinite;
}
.fx-v9-slider-crossfade-ocean-13422 .s1 {
  background: radial-gradient(70% 90% at 25% 20%, #0ea5e9, transparent 70%), linear-gradient(140deg, #6366f1, #0b1120);
}
.fx-v9-slider-crossfade-ocean-13422 .s2 {
  background: radial-gradient(70% 90% at 75% 30%, #6366f1, transparent 70%), linear-gradient(200deg, #0ea5e9, #0b1120);
  animation-delay: 3s;
}
.fx-v9-slider-crossfade-ocean-13422 .s3 {
  background: radial-gradient(80% 80% at 50% 80%, #0ea5e9, transparent 68%), linear-gradient(90deg, #6366f1, #0b1120);
  animation-delay: 6s;
}
@keyframes fx-v9-slider-crossfade-ocean-13422-fade {
  0%      { opacity: 0; }
  6%, 30% { opacity: 1; }
  36%     { opacity: 0; }
  100%    { opacity: 0; }
}
.fx-v9-slider-crossfade-ocean-13422 .dots {
  position: absolute;
  left: 50%;
  bottom: 0.6rem;
  display: flex;
  gap: 0.32rem;
  transform: translateX(-50%);
}
.fx-v9-slider-crossfade-ocean-13422 .dots b {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(248,250,252,0.35);
  animation: fx-v9-slider-crossfade-ocean-13422-dot 9s ease-in-out infinite;
}
.fx-v9-slider-crossfade-ocean-13422 .dots b:nth-child(2) { animation-delay: 3s; }
.fx-v9-slider-crossfade-ocean-13422 .dots b:nth-child(3) { animation-delay: 6s; }
@keyframes fx-v9-slider-crossfade-ocean-13422-dot {
  0%      { background: rgba(248,250,252,0.35); width: 6px; }
  6%, 30% { background: #f8fafc; width: 14px; }
  36%     { background: rgba(248,250,252,0.35); width: 6px; }
  100%    { background: rgba(248,250,252,0.35); width: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  .fx-v9-slider-crossfade-ocean-13422,
  .fx-v9-slider-crossfade-ocean-13422::before,
  .fx-v9-slider-crossfade-ocean-13422::after,
  .fx-v9-slider-crossfade-ocean-13422 *,
  .fx-v9-slider-crossfade-ocean-13422 *::before,
  .fx-v9-slider-crossfade-ocean-13422 *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0ms !important;
    transition-duration: 1ms !important;
    transition-delay: 0ms !important;
  }
}
ocean-crossfade-slideshow-13423.html
<div class="fx-v9-slider-crossfade-ocean-13422">
  <i class="s1"></i>
  <i class="s2"></i>
  <i class="s3"></i>
  <div class="dots">
    <b></b>
    <b></b>
    <b></b>
  </div>
</div>

What do I do with this?

  1. Put ocean-crossfade-slideshow-13423.css anywhere your page already loads CSS from — in Next.js that is app/globals.css, or any stylesheet with a <link> in your HTML.
  2. Then put the class on the element you want it on: <button class="fx-v9-slider-crossfade-ocean-13422">. The CSS does nothing until a class name in it matches something on the page.
  • Link the stylesheet, then paste the markup wherever you need it.
npx hoverlab add ocean-crossfade-slideshow-13423

What's included

  • The markup and the stylesheet, in whichever framework you pick
  • No runtime dependencies

Works with

  • React
  • Vue
  • Svelte
  • Tailwind
  • styled-components
  • Plain CSS

npx hoverlab add ocean-crossfade-slideshow-13423

Or over MCP, from your editor's agent — no account needed.

License

Free to read, copy and install, for personal and non-commercial projects. Shipping it in client work or a paid product needs Pro ($79 once). The source lands in your repo and stops being ours — no attribution, nothing to upgrade.

Was this useful?

Motion safety

Static estimate, read from the CSS

Reduced motion
Guarded

Ships a prefers-reduced-motion block, so the loop settles into its end state for visitors who ask for less motion.

What it animates
Reflows

Animates width (and background). The browser re-lays-out the page on every frame; prefer transform if you can.

Flashing (WCAG 2.3.1)
Under 3 flashes/s

Its brightest loop is about 0.1 a second. Estimated from duration, iterations and keyframes, not from rendered frames.

Layout shift (CLS)
May shift layout

Animates width on a box in flow, so content beside or after it can move. A category from the CSS, not a measurement for this effect.

Every row is read from the shipped CSS. Only a figure marked measured came from a browser. Customizing the speed changes the timing, so recheck a customized copy. How it is computed

29 more effects in Sliders & Carousels

All of them free to read, copy and install — no account, no locked tiles, no watermarked preview. The whole catalog is open, and so are the API and the CLI.

Browse Sliders & Carousels

Shipping one commercially

Copying the code is free. Putting it in client work or a paid product is what Pro is for — the licence, not the access.

  • A commercial licence for everything in the catalog
  • Unlimited bundle exports, in Vue, Svelte and Tailwind
  • One payment — no subscription, nothing to renew
Pro — $79 once

7 variations of Ocean Crossfade Slideshow

Finished looks, each one a position in the customizer above. Copy any of them, or open it and keep moving the sliders.