Circuit Trace Loader
A glowing packet runs the rectangular copper trace of a small board, turning each corner in sequence around the chip package sitting at the centre.
- lines of CSS
- 84lines of CSS
- dependencies
- 0dependencies
- browser, for years
- Everybrowser, for years
- stops under reduced motion
- Guardedstops under reduced motion
Vue, Svelte, styled-components and Tailwind exports are part of Pro. HTML, CSS and React are free forever.
.fx-v14-load-trace-15646 {
position: relative;
width: 172px;
height: 88px;
background:
repeating-linear-gradient(90deg, rgba(56,189,248,0.06) 0 1px, rgba(0,0,0,0) 1px 11px),
repeating-linear-gradient(0deg, rgba(56,189,248,0.06) 0 1px, rgba(0,0,0,0) 1px 11px),
#0a1220;
border: 1px solid #1c3a52;
border-radius: 6px;
}
.fx-v14-load-trace-15646 .trace {
position: absolute;
left: 14px;
top: 14px;
width: 142px;
height: 58px;
border: 2px solid rgba(56, 189, 248, 0.32);
border-radius: 3px;
}
.fx-v14-load-trace-15646 .trace::before,
.fx-v14-load-trace-15646 .trace::after {
content: '';
position: absolute;
width: 7px;
height: 7px;
border-radius: 50%;
background: #1e4b6b;
box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.35);
}
.fx-v14-load-trace-15646 .trace::before { left: -4px; top: -4px; }
.fx-v14-load-trace-15646 .trace::after { right: -4px; bottom: -4px; }
.fx-v14-load-trace-15646 .chip {
position: absolute;
left: 50%;
top: 50%;
width: 52px;
height: 26px;
margin: -13px 0 0 -26px;
display: flex;
align-items: center;
justify-content: center;
font-size: 0.55rem;
font-weight: 700;
letter-spacing: 0.1em;
color: #7dd3fc;
background: #111c2e;
border: 1px solid #2c4a68;
border-radius: 3px;
box-shadow: -6px 0 0 -4px #64748b, 6px 0 0 -4px #64748b;
}
.fx-v14-load-trace-15646 .pkt {
position: absolute;
left: 10px;
top: 10px;
width: 9px;
height: 9px;
border-radius: 50%;
background: #67e8f9;
box-shadow: 0 0 10px 2px rgba(103, 232, 249, 0.65);
animation: fx-v14-load-trace-15646-route 2.6s linear infinite;
}
@keyframes fx-v14-load-trace-15646-route {
0% { transform: translate(0, 0); }
25% { transform: translate(142px, 0); }
50% { transform: translate(142px, 58px); }
75% { transform: translate(0, 58px); }
100% { transform: translate(0, 0); }
}
@media (prefers-reduced-motion: reduce) {
.fx-v14-load-trace-15646,
.fx-v14-load-trace-15646::before,
.fx-v14-load-trace-15646::after,
.fx-v14-load-trace-15646 *,
.fx-v14-load-trace-15646 *::before,
.fx-v14-load-trace-15646 *::after {
animation-duration: 1ms !important;
animation-iteration-count: 1 !important;
animation-delay: 0ms !important;
transition-duration: 1ms !important;
transition-delay: 0ms !important;
}
}<div class="fx-v14-load-trace-15646">
<span class="trace"></span>
<span class="chip">SoC</span>
<span class="pkt"></span>
</div>What do I do with this?
- Put
circuit-trace-loader-15647.cssanywhere your page already loads CSS from — in Next.js that isapp/globals.css, or any stylesheet with a<link>in your HTML. - Then put the class on the element you want it on:
<button class="fx-v14-load-trace-15646">. 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 circuit-trace-loader-15647What'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 circuit-trace-loader-15647
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.
Motion safety
Static estimate, read from the CSS
- Reduced motion
- Guarded
Ships a
prefers-reduced-motionblock, so the loop settles into its end state for visitors who ask for less motion. - What it animates
- Compositor only
Only
transform,opacityorfilter: the GPU can run it without re-laying-out or repainting the page. - 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
41 more effects in Loaders
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 LoadersShipping 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
7 variations of Circuit Trace Loader
Finished looks, each one a position in the customizer above. Copy any of them, or open it and keep moving the sliders.