# Fill Button

> A button with a clip-path fill sweep animation that reveals an inverted color copy on hover or focus, with configurable direction, duration and ease.

- Author: [mirukullacode](https://21st.dev/@mirukullacode)
- Library: mirukullacode
- License: MIT
- Tags: Button, Animation, Hover Effect, GSAP, Clip Path
- npm dependencies: gsap
- Live preview: https://21st.dev/@mirukullacode/components/fill-button

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/mirukullacode/fill-button?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/button.md