Loading…
Live component · try it
Premiumscroll · scroll · light
Scroll Progress Bar
A thin bar across the top that fills as you read: it uses `scaleX` driven by a scroll-linked animation, so it moves on the compositor with no scroll listener at all, and a small percentage pill at its end shows the number. Browsers without scroll timelines fall back to a rAF listener.
The mechanic
`.sc { scroll-timeline: --dm-read y }`, `#scroll { timeline-scope: --dm-read }` (so the bar can live outside the scroller and stay put) and `.bar { transform-origin: left; animation: grow linear both; animation-timeline: --dm-read }` with `@keyframes grow { from { transform: scaleX(0) } to { transform: scaleX(1) } }`; the pill reads `scrollTop / (scrollHeight − clientHeight)` from a passive listener and sits at the bar's end via the same ratio. When named scroll timelines are unsupported the listener also sets the bar's transform.
How to use it
From prompt to a block in your page.
- 01Try the component
The preview is the shipped element inside a neutral demo page. Hover, click, focus: the one interaction it is about is live.
- 02Pick a palette
Token sets re-tint it live. The prompt carries the one you chose.
- 03Pick your stack
A paste-in snippet, or a component for Next.js, React, Vue, Astro, WordPress, Shopify or Webflow.
- 04Copy the prompt
It quotes the markup, styles and script verbatim with the tokens and the rules that keep it self-contained.
- 05Mount it in your layout
It inherits your page's font and width; the tokens live on :root; several instances share one script.
