Pro
Scroll velocity
Rows that drift sideways and answer the page's scroll: faster scrolling pushes them faster and leans them a little, scrolling up turns them round, and they ease back to a slow drift when the page rests.
pnpm dlx shadcn@latest add @caliper/scroll-velocityWhen to use
Use it for
- A landing section listing what people build, integrations or customers.
- Once per page, between denser sections.
Skip it when
- Content people must read or click; it moves.
- Product screens.
Decisions
Why it is built this way, so you know what to keep when you change your copy.
Behaviour
- Calm by default
- Scrolling adds at most 600px a second and a 6° lean, and both ease off by about 90% a second.
Usage
- Read once, pausable
- Each row is read once from a hidden list; it pauses, stops off screen and stands still under reduced motion.
Installation
pnpm dlx shadcn@latest add @caliper/scroll-velocity
Adds its 3 files to components/ui/, each with its own stylesheet, and installs their packages. Pro installs with your access token, set up once per project. See Pro access. The first part also adds Caliper UI’s tokens; import them once as in Installation.
Usage
Import it from your copy of the source. The example behind the preview comes with the source.
import { ScrollVelocity } from "@/components/ui/scroll-velocity"
The worked example comes with Pro
The 40-line example behind the preview opens here, ready to copy.
- 576 Pro parts, blocks and page templates, all with source
- $199 once, with a year of updates. What you have stays yours
- A full refund within 14 days if it is not for you
API reference
ScrollVelocity
component
Accessibility
It is built on native elements and keeps aria-label and aria-pressed in step with state.
No custom key handling; Tab and the native activation keys do the work.
Motion
It checks prefers-reduced-motion itself and settles immediately instead of travelling. Every state is still reachable.