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Added 2 Aug 2026
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blue-vertical-tabs-6395
Blue Vertical Tabs
Accordions & Tabs

Blue Vertical Tabs

Settings-page sidebar tabs where a glowing blue marker grows out of the rail beside the active item.

Accordions & Tabstabsverticalsidebarsettingsrailblue
lines of CSS
38lines of CSS
dependencies
0dependencies
browser, for years
Everybrowser, for years
motion only on interaction
Hovermotion only on interaction
Backdrop
Open a live copy in

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

blue-vertical-tabs-6395.css
.fx-mac-vtabs-blue-6394 {
  display: flex;
  flex-direction: column;
  width: 165px;
  padding-left: 2px;
  border-left: 2px solid rgba(255,255,255,0.08);
}
.fx-mac-vtabs-blue-6394 a {
  position: relative;
  padding: 0.5rem 0.75rem;
  font-size: 0.83rem;
  font-weight: 500;
  color: #7c8aa5;
  border-radius: 0 0.4rem 0.4rem 0;
  cursor: pointer;
  transition: color 0.22s ease, background 0.22s ease;
}
.fx-mac-vtabs-blue-6394 a::before {
  content: '';
  position: absolute;
  left: -2px;
  top: 50%;
  width: 2px;
  height: 0;
  border-radius: 2px;
  background: #3b82f6;
  box-shadow: 0 0 10px #3b82f6;
  transform: translateY(-50%);
  transition: height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.fx-mac-vtabs-blue-6394 a:hover { color: #cbd5e1; background: rgba(255,255,255,0.04); }
.fx-mac-vtabs-blue-6394 a.on {
  color: #f1f5f9;
  font-weight: 600;
  background: rgba(59,130,246, 0.1);
}
.fx-mac-vtabs-blue-6394 a.on::before,
.fx-mac-vtabs-blue-6394 a:hover::before { height: 60%; }
blue-vertical-tabs-6395.html
<div class="fx-mac-vtabs-blue-6394">
  <a>General</a>
  <a class="on">Billing</a>
  <a>Members</a>
  <a>Webhooks</a>
</div>

What do I do with this?

  1. Put blue-vertical-tabs-6395.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-mac-vtabs-blue-6394">. 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 blue-vertical-tabs-6395

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 blue-vertical-tabs-6395

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
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
Reflows

Animates height (and background, color). 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 height 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

30 more effects in Accordions & Tabs

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 Accordions & Tabs

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 Blue Vertical Tabs

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