# Quantum Stamp (`.sds-btn-quantum`)

Scale-in with elastic overshoot. Buttons animation in SDS Motion Forge v5.0.0. It plays once as soon as the class is applied.

- Page: https://sds-motion-forge.netlify.app/animations/btn-quantum/
- Category: Buttons (https://sds-motion-forge.netlify.app/categories/buttons/)
- Animated properties: opacity, transform
- Compositor-only: yes
- Needs child elements: no
- Needs per-character spans: no
- JavaScript: none required

## Use it

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

<button class="sds-btn-quantum">Button</button>
```

## How it works

Plays once, as soon as the class is applied. It animates opacity and movement and scale (transform) — compositor-only, so it never causes page reflow. `--sds-duration-base` controls the speed and `--sds-easing` controls the feel — override either on the element or :root (the sds-fast/sds-slow modifier classes do exactly that).

## Related

- [Press Spring](https://sds-motion-forge.netlify.app/animations/btn-press-spring/)
- [Prism Edge](https://sds-motion-forge.netlify.app/animations/btn-prism-edge/)
- [Pulse Border](https://sds-motion-forge.netlify.app/animations/btn-pulse-border/)
- [Radar](https://sds-motion-forge.netlify.app/animations/btn-radar/)
- [Recoil](https://sds-motion-forge.netlify.app/animations/btn-recoil/)
- [Ripple](https://sds-motion-forge.netlify.app/animations/btn-ripple/)