Buttons animation · .sds-btn-outline-grow

Outline Grow

Outline Grow — button animation. Add the class .sds-btn-outline-grow to any element — it loops continuously as soon as the class is applied, with no JavaScript.

Live demo

Demo uses this site's neutral theme; override --sds-primary to match your brand.

Quick start

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@salkomdesignstudio/sds-motion-forge/dist/categories/buttons.min.css" />

<button class="sds-btn-outline-grow">Button</button>

Loads only the buttons bundle (core is included).Prefer one file? Use https://cdn.jsdelivr.net/npm/@salkomdesignstudio/sds-motion-forge/dist/motion.min.css (all 604 effects).

How it works

Plays as soon as the class is applied, looping continuously. It animates an expanding outline. Timing is fixed for this effect, but you can still override animation-duration/timing-function on the element.

Technical details

Class	`.sds-btn-outline-grow`
Category	Buttons
Runs	loops continuously, as soon as the class is applied
Animated properties	outline-color, outline-offset, outline-width
Compositor-only	No — also animates paint or layout properties
Needs child elements	No
Needs per-character spans	No
JavaScript	None required
Keyframes	sds-btnOutlineGrow
Design tokens	n/a
Since	4.0.3

Copy-paste code

HTML

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@salkomdesignstudio/sds-motion-forge/dist/motion.min.css" />
  </head>
  <body>
    <button class="sds-btn-outline-grow">Button</button>
  </body>
</html>

React / Next.js

import "@salkomdesignstudio/sds-motion-forge/dist/motion.min.css";

export default function Demo() {
  return (
    <button className="sds-btn-outline-grow">Button</button>
  );
}

Angular

// angular.json → architect.build.options.styles:
//   "node_modules/@salkomdesignstudio/sds-motion-forge/dist/motion.min.css"
import { Component } from '@angular/core';

@Component({
  selector: 'app-demo',
  standalone: true,
  template: `
    <button class="sds-btn-outline-grow">Button</button>
  `,
})
export class DemoComponent {}

Tailwind CSS

/* app.css — Tailwind v4 */
@import "tailwindcss";
@import "@salkomdesignstudio/sds-motion-forge/dist/motion.min.css";

/* then use the class like any other: */
<button class="sds-btn-outline-grow">Button</button>

Typed React, Angular, Tailwind and Web Components wrappers live in packages/ in the repository and are not yet published to npm; the snippets above need only the CSS.

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