# Underline Grow (`.sds-underline-grow`)

Underline draws on from left. Text 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/underline-grow/
- Category: Text (https://sds-motion-forge.netlify.app/categories/text/)
- 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/text.min.css" />

<h1 class="sds-underline-grow">Underline Grow</h1>
```

## 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. `--sds-duration` 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

- [Tracking Expand](https://sds-motion-forge.netlify.app/animations/tracking-expand/)
- [Typewriter Pro](https://sds-motion-forge.netlify.app/animations/typewriter-pro/)
- [Typing Caret](https://sds-motion-forge.netlify.app/animations/typing-caret/)
- [Unfurl](https://sds-motion-forge.netlify.app/animations/unfurl/)
- [Vapor Rise](https://sds-motion-forge.netlify.app/animations/vapor-rise/)
- [Velocity Blur](https://sds-motion-forge.netlify.app/animations/velocity-blur-text/)