# Window Panel

> A collapsible, mac-style window panel with a tab strip in its title bar that animates its viewport height to the active tab's content.

- Author: [lailai0916](https://21st.dev/@lailai0916)
- Library: lailai0916
- License: MIT
- Tags: Window, Panel, Tabs, Collapsible
- npm dependencies: clsx
- Live preview: https://21st.dev/@lailai0916/components/window-panel

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/lailai0916/window-panel?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/window.md