ContourLines

Topographic contour rings around slowly wandering peaks.

Off the map

Installation

bash
npx shadcn@latest add https://www.rad-ui.com/r/contour-lines.json

React
import ContourLines from "@/components/fx/contour-lines"

<ContourLines className="px-8 py-24">
    <h2>Your content</h2>
</ContourLines>

The effect layer is aria-hidden and ignores pointer events; only children are exposed.
Pauses offscreen; `paused` stops it on demand (wire it to a visible control if it runs behind reading content).
prefers-reduced-motion: reduce (or data-rad-fx-motion="reduce" on an ancestor) holds the contours still.

Prop	Type	Default	Description
color	string	emerald, 35%	Line colour.
spacing	number	18	Distance between lines in px.
speed	number	20	Seconds per drift cycle.
paused	boolean	false	Stop the animation. It also pauses offscreen.
...props	ComponentProps<'div'>	—	Passed to the root div; children render above.