# Button

> A fluid button with primary, secondary, tertiary, and ghost variants. Supports sizes, leading/trailing icons, icon-only mode, and animated loading state.

- Author: [micka_design](https://21st.dev/@micka_design)
- Library: [Fluid Functionalism](https://21st.dev/@micka_design/library/fluid-functionalism)
- License: mit
- Tags: Button, Icon Button, Button Loading
- npm dependencies: clsx, lucide-react, tailwind-merge, @radix-ui/react-slot, class-variance-authority
- Live preview: https://21st.dev/@micka_design/components/button

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/micka_design/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