# Seismic Shake (`.sds-input-shake`)

Horizontal shake for invalid state. Inputs 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/input-shake/
- Category: Inputs (https://sds-motion-forge.netlify.app/categories/inputs/)
- Animated properties: 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/inputs.min.css" />

<input class="sds-input-shake" placeholder="Type here" />
```

## How it works

Plays once, as soon as the class is applied. It animates movement and scale (transform) — compositor-only, so it never causes page reflow. Timing is fixed for this effect, but you can still override animation-duration/timing-function on the element.

## Related

- [Ripple](https://sds-motion-forge.netlify.app/animations/input-ripple/)
- [Saved Flash](https://sds-motion-forge.netlify.app/animations/input-saved-flash/)
- [Scan](https://sds-motion-forge.netlify.app/animations/input-scan/)
- [Shimmer Scan](https://sds-motion-forge.netlify.app/animations/input-shimmer/)
- [Solar](https://sds-motion-forge.netlify.app/animations/input-solar/)
- [Success Glow](https://sds-motion-forge.netlify.app/animations/input-success/)