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Added 30 Aug 2026Updated 13 Sept 2026
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timer-border-15613
Timer Border
Dates & Time

Timer Border

Outline that draws itself edge by edge around the panel on a four-second cycle, the way a countdown ring reads on a rectangle.

Dates & Timetimercountdowndrawoutlinesequence
lines of CSS
42lines of CSS
dependencies
0dependencies
browser, for years
Everybrowser, for years
stops under reduced motion
Guardedstops under reduced motion
Backdrop
Auto-saving…
Open a live copy in

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

timer-border-15613.css
.fx-v13-bo-timer-15612 {
  position: relative;
  padding: 0.85rem 1.1rem;
  background: #101a2c;
  border: 2px solid #253049;
  border-radius: 0.5rem;
  color: #cbd5e1;
  font-size: 0.82rem;
}
.fx-v13-bo-timer-15612 i {
  position: absolute;
  background: #22d3ee;
  box-shadow: 0 0 8px rgba(34,211,238,0.6);
}
.fx-v13-bo-timer-15612 .t { top: -2px;    left: -2px;  height: 2px; width: 0; animation: fx-v13-bo-timer-15612-w 4s linear infinite; }
.fx-v13-bo-timer-15612 .r { top: -2px;    right: -2px; width: 2px; height: 0; animation: fx-v13-bo-timer-15612-h 4s linear 1s infinite; }
.fx-v13-bo-timer-15612 .b { bottom: -2px; right: -2px; height: 2px; width: 0; animation: fx-v13-bo-timer-15612-w 4s linear 2s infinite; }
.fx-v13-bo-timer-15612 .l { bottom: -2px; left: -2px;  width: 2px; height: 0; animation: fx-v13-bo-timer-15612-h 4s linear 3s infinite; }
.fx-v13-bo-timer-15612 span { position: relative; }
@keyframes fx-v13-bo-timer-15612-w {
  0%       { width: 0; }
  25%,100% { width: calc(100% + 4px); }
}
@keyframes fx-v13-bo-timer-15612-h {
  0%       { height: 0; }
  25%,100% { height: calc(100% + 4px); }
}

@media (prefers-reduced-motion: reduce) {
  .fx-v13-bo-timer-15612,
  .fx-v13-bo-timer-15612::before,
  .fx-v13-bo-timer-15612::after,
  .fx-v13-bo-timer-15612 *,
  .fx-v13-bo-timer-15612 *::before,
  .fx-v13-bo-timer-15612 *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0ms !important;
    transition-duration: 1ms !important;
    transition-delay: 0ms !important;
  }
}
timer-border-15613.html
<div class="fx-v13-bo-timer-15612">
  <i class="t"></i>
  <i class="r"></i>
  <i class="b"></i>
  <i class="l"></i>
  <span>Auto-saving…</span>
</div>

What do I do with this?

  1. Put timer-border-15613.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-v13-bo-timer-15612">. 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 timer-border-15613

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 timer-border-15613

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 height, width. 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, width 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

16 more effects in Dates & Time

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 Dates & Time

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 Timer Border

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