Line sway

Dense vertical lines sway like silk, bend away from the pointer, glow where they are pushed and spring back into place.

element
lines
silk
pointer
spring
canvas
since 0.2

Background Studio: tune it below, then copy the code

Your system asks for reduced motion: the demo shows its final state and nothing moves.

Live demo

Line sway example

Code

It follows the controls above: change an option and the code changes with it.

<script src="https://search.axi0.io/axi0/motion/motion.js" defer></script>

<axi0-line-sway cover></axi0-line-sway>

import { LineSway } from "./motion/react/LineSway";

<LineSway />

<script setup lang="ts">
import LineSway from "./motion/vue/LineSway.vue";
</script>

<template>
  <LineSway />
</template>

const fx = document.createElement("axi0-line-sway");
document.querySelector("#hero").append(fx);

The wrappers: LineSway.tsx (React, TypeScript) and LineSway.vue (Vue). Both render the same attributes as the HTML; the loader does the rest.

Options

Attribute	Default	What it does
`spacing`	`7`	Space between the lines
`amplitude`	`34`	How far the lines sway at rest
`reach`	`150`	How far the pointer pushes
`colors`	auto	Colors, comma separated (empty: the palette for the page's theme)
`background`	auto	Background color (empty: the theme's)
`speed`	`1`	How fast it moves
`theme`	`auto`	Light or dark palette (auto: from the page behind it)
`cover`	`false`	Fill the nearest positioned parent, behind its content

Decorative: the canvas is aria-hidden and takes no focus; with cover it ignores the pointer, so the content above it stays clickable. The pointer only adds to the motion; touch and keyboard users see the same swaying lines. Drawn on a 2D canvas at device resolution (capped at 2); it starts when it comes within 300 px of the screen, the frame loop stops off screen and in hidden tabs, and reduced motion draws one still frame with no movement.

Size

line-sway.js is 1.0 KB gzip, with backgrounds-kit.js 3.4 KB it needs. A page loads the loader (2.9 KB) and core.js (1.4 KB) once, whatever it uses.