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Added 2 Aug 2026
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ocean-heat-grid-4841
Ocean Heat Grid
Charts & Data

Ocean Heat Grid

Contribution-graph style grid where ocean cells shimmer at different intensities.

Charts & Datachartheatmapgridcontributionsdataocean
lines of CSS
39lines 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-heat-grid-4841.css
.fx-ch-heat-ocean-4840 {
  display: grid;
  grid-template-columns: repeat(7, 14px);
  gap: 4px;
  padding: 0.8rem;
  border-radius: 0.7rem;
  background: #0f172a;
  border: 1px solid rgba(255,255,255,0.07);
}
.fx-ch-heat-ocean-4840 i {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: rgba(255,255,255,0.06);
  animation: fx-ch-heat-ocean-4840-heat 3.2s ease-in-out infinite;
}
.fx-ch-heat-ocean-4840 i:nth-child(3n)   { animation-delay: 0.2s; background: rgba(6,182,212, 0.35); }
.fx-ch-heat-ocean-4840 i:nth-child(4n)   { animation-delay: 0.4s; background: rgba(59,130,246, 0.55); }
.fx-ch-heat-ocean-4840 i:nth-child(5n)   { animation-delay: 0.6s; background: rgba(99,102,241, 0.75); }
.fx-ch-heat-ocean-4840 i:nth-child(7n)   { animation-delay: 0.8s; }
@keyframes fx-ch-heat-ocean-4840-heat {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .fx-ch-heat-ocean-4840,
  .fx-ch-heat-ocean-4840::before,
  .fx-ch-heat-ocean-4840::after,
  .fx-ch-heat-ocean-4840 *,
  .fx-ch-heat-ocean-4840 *::before,
  .fx-ch-heat-ocean-4840 *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0ms !important;
    transition-duration: 1ms !important;
    transition-delay: 0ms !important;
  }
}
ocean-heat-grid-4841.html
<div class="fx-ch-heat-ocean-4840">
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</div>

What do I do with this?

  1. Put ocean-heat-grid-4841.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-ch-heat-ocean-4840">. 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-heat-grid-4841

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-heat-grid-4841

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
Compositor only

Only transform, opacity or filter: the GPU can run it without re-laying-out or repainting the page.

Flashing (WCAG 2.3.1)
Under 3 flashes/s

Its brightest loop is about 0.3 a second. Estimated from duration, iterations and keyframes, not from rendered frames.

Layout shift (CLS)
No shift expected

Nothing it animates moves or resizes the box in flow. 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

35 more effects in Charts & Data

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 Charts & Data

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 Heat Grid

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