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Added 17 Aug 2026
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heatmap-cell-grid-15273
Heatmap Cell Grid
Tables & Data Grids

Heatmap Cell Grid

Compact data grid whose cells are tinted by value like a heatmap, with each cell popping forward on hover.

Tables & Data Gridsheatmapgridcellsdata
lines of CSS
23lines of CSS
dependencies
0dependencies
browser, for years
Everybrowser, for years
motion only on interaction
Hovermotion only on interaction
Backdrop
MonTueWedThu
Sun48212
Wnd11175
Rain93140
Open a live copy in

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

heatmap-cell-grid-15273.css
.fx-v12-tb-heat-15272 {
  border-collapse: separate;
  border-spacing: 3px;
  font-family: system-ui, sans-serif;
  font-size: 0.72rem;
  color: #e2e8f0;
}
.fx-v12-tb-heat-15272 th { font-weight: 500; color: #94a3b8; padding: 2px 6px; }
.fx-v12-tb-heat-15272 td {
  width: 40px;
  height: 28px;
  text-align: center;
  border-radius: 5px;
  font-variant-numeric: tabular-nums;
  color: #022c22;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.fx-v12-tb-heat-15272 .l1 { background: #064e3b; color: #a7f3d0; }
.fx-v12-tb-heat-15272 .l2 { background: #059669; }
.fx-v12-tb-heat-15272 .l3 { background: #34d399; }
.fx-v12-tb-heat-15272 .l4 { background: #a7f3d0; }
.fx-v12-tb-heat-15272 td:hover { transform: scale(1.15); box-shadow: 0 0 0 2px #ecfdf5; position: relative; z-index: 1; }
heatmap-cell-grid-15273.html
<table class="fx-v12-tb-heat-15272">
  <tr>
    <th></th>
    <th>Mon</th>
    <th>Tue</th>
    <th>Wed</th>
    <th>Thu</th>
  </tr>
  <tr>
    <th>Sun</th>
    <td class="l2">4</td>
    <td class="l3">8</td>
    <td class="l1">2</td>
    <td class="l4">12</td>
  </tr>
  <tr>
    <th>Wnd</th>
    <td class="l1">1</td>
    <td class="l4">11</td>
    <td class="l3">7</td>
    <td class="l2">5</td>
  </tr>
  <tr>
    <th>Rain</th>
    <td class="l3">9</td>
    <td class="l2">3</td>
    <td class="l4">14</td>
    <td class="l1">0</td>
  </tr>
</table>

What do I do with this?

  1. Put heatmap-cell-grid-15273.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-v12-tb-heat-15272">. 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 heatmap-cell-grid-15273

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 heatmap-cell-grid-15273

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.

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Motion safety

Static estimate, read from the CSS

Reduced motion
Brief motion, no guard

Animates briefly or on interaction. Only looping motion gets a guard in this catalog; copy the one from the Insights tab if this ships on a critical path.

What it animates
Repaints

Animates box-shadow. No reflow, but the browser repaints every frame, which is fine for one element and costly across many.

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)
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

33 more effects in Tables & Data Grids

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 Tables & Data Grids

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 Heatmap Cell Grid

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