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Added 2 Aug 2026Updated 4 Aug 2026
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ocean-indeterminate-bar-3519
Ocean Indeterminate Bar
Progress & Meters

Ocean Indeterminate Bar

Loading bar with an unknown duration — an ocean segment sweeps across the track.

Progress & Metersprogressindeterminateloadingocean
lines of CSS
35lines 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-indeterminate-bar-3519.css
.fx-pg-indet-ocean-3518 {
  position: relative;
  width: 220px;
  height: 5px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}
.fx-pg-indet-ocean-3518 span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 40%;
  border-radius: inherit;
  background: linear-gradient(90deg, #0ea5e9, #6366f1);
  animation: fx-pg-indet-ocean-3518-sweep 1.4s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}
@keyframes fx-pg-indet-ocean-3518-sweep {
  0%   { left: -40%; }
  100% { left: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .fx-pg-indet-ocean-3518,
  .fx-pg-indet-ocean-3518::before,
  .fx-pg-indet-ocean-3518::after,
  .fx-pg-indet-ocean-3518 *,
  .fx-pg-indet-ocean-3518 *::before,
  .fx-pg-indet-ocean-3518 *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0ms !important;
    transition-duration: 1ms !important;
    transition-delay: 0ms !important;
  }
}
ocean-indeterminate-bar-3519.html
<div class="fx-pg-indet-ocean-3518">
  <span></span>
</div>

What do I do with this?

  1. Put ocean-indeterminate-bar-3519.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-pg-indet-ocean-3518">. 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-indeterminate-bar-3519

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-indeterminate-bar-3519

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 left. The browser re-lays-out the page on every frame; prefer transform if you can.

Flashing (WCAG 2.3.1)
No flashing found

No repeating change in opacity, colour or brightness large enough to count as a flash.

Layout shift (CLS)
May shift layout

Animates left 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 Progress & Meters

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 Progress & Meters

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 Indeterminate Bar

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