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Added 2 Aug 2026
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blue-announcement-banner-6361
Blue Announcement Banner
Alerts & Toasts

Blue Announcement Banner

Site-wide banner with a blue light sweeping along its top edge — attention without a modal.

Alerts & Toastsalertbannerannouncementmarketingblue
lines of CSS
46lines of CSS
dependencies
0dependencies
browser, for years
Everybrowser, for years
stops under reduced motion
Guardedstops under reduced motion
Backdrop

v2 is out — read the announcement

Open a live copy in

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

blue-announcement-banner-6361.css
.fx-mal-banner-blue-6360 {
  position: relative;
  width: 250px;
  padding: 0.6rem 0.9rem;
  text-align: center;
  border-radius: 0.55rem;
  overflow: hidden;
  background: rgba(59,130,246, 0.1);
}
.fx-mal-banner-blue-6360::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #3b82f6, #93c5fd, transparent);
  animation: fx-mal-banner-blue-6360-scan 3.4s ease-in-out infinite;
}
.fx-mal-banner-blue-6360 p { margin: 0; font-size: 0.79rem; color: #cbd5e1; }
.fx-mal-banner-blue-6360 a {
  color: #93c5fd;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
@keyframes fx-mal-banner-blue-6360-scan {
  0%, 100% { opacity: 0.35; transform: translateX(-15%); }
  50%      { opacity: 1;    transform: translateX(15%); }
}

@media (prefers-reduced-motion: reduce) {
  .fx-mal-banner-blue-6360,
  .fx-mal-banner-blue-6360::before,
  .fx-mal-banner-blue-6360::after,
  .fx-mal-banner-blue-6360 *,
  .fx-mal-banner-blue-6360 *::before,
  .fx-mal-banner-blue-6360 *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0ms !important;
    transition-duration: 1ms !important;
    transition-delay: 0ms !important;
  }
}
blue-announcement-banner-6361.html
<div class="fx-mal-banner-blue-6360">
  <p>v2 is out — <a>read the announcement</a></p>
</div>

What do I do with this?

  1. Put blue-announcement-banner-6361.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-mal-banner-blue-6360">. 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-announcement-banner-6361

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-announcement-banner-6361

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

30 more effects in Alerts & Toasts

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 Alerts & Toasts

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 Announcement Banner

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