Ocean Slug Preview
Title field with the URL it will produce rendered underneath, domain greyed and slug highlighted, so the transformation is visible before anything is saved.
- lines of CSS
- 41lines of CSS
- dependencies
- 0dependencies
- browser, for years
- Everybrowser, for years
- motion only on interaction
- Hovermotion only on interaction
Vue, Svelte, styled-components and Tailwind exports are part of Pro. HTML, CSS and React are free forever.
.fx-v10-input-slug-ocean-14330 {
display: grid;
gap: 0.3rem;
width: 254px;
}
.fx-v10-input-slug-ocean-14330 label { font-size: 0.7rem; font-weight: 600; color: #94a3b8; }
.fx-v10-input-slug-ocean-14330 .in {
width: 100%;
padding: 0.52rem 0.6rem;
border-radius: 0.45rem;
background: #0f172a;
border: 1px solid #1e293b;
font-size: 0.78rem;
color: #f1f5f9;
outline: none;
transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.fx-v10-input-slug-ocean-14330 .in:hover,
.fx-v10-input-slug-ocean-14330 .in:focus {
border-color: #3b82f6;
box-shadow: 0 0 0 3px rgba(59,130,246, 0.14);
}
.fx-v10-input-slug-ocean-14330 .pv {
display: flex;
flex-wrap: wrap;
align-items: baseline;
gap: 0.1rem;
padding: 0.4rem 0.55rem;
border-radius: 0.4rem;
background: rgba(6,182,212, 0.09);
box-shadow: inset 0 0 0 1px rgba(59,130,246, 0.24);
font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
font-size: 0.67rem;
line-height: 1.5;
}
.fx-v10-input-slug-ocean-14330 .pv em { font-style: normal; color: #64748b; }
.fx-v10-input-slug-ocean-14330 .pv b {
font-weight: 600;
color: #6366f1;
word-break: break-all;
}<div class="fx-v10-input-slug-ocean-14330">
<label>Post title</label>
<input class="in" value="Ten CSS shapes worth stealing" readonly />
<div class="pv">
<em>hoverlab.dev/blog/</em>
<b>ten-css-shapes-worth-stealing</b>
</div>
</div>What do I do with this?
- Put
ocean-slug-preview-14331.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-v10-input-slug-ocean-14330">. 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 ocean-slug-preview-14331What'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 ocean-slug-preview-14331
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
- 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
border-color,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
38 more effects in Inputs & Hover
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 Inputs & HoverShipping 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 Ocean Slug Preview
Finished looks, each one a position in the customizer above. Copy any of them, or open it and keep moving the sliders.