# Banner

> Place the element at the top of your root layout to display announcements. By default, the banner uses a style tag to modify Fumadocs layouts, such as reducing the sidebar height. You can disable this feature with: To enable users to close the banner, assign it an ID. The state will be automatically saved.

- Author: [Fuma Nama](https://21st.dev/@fuma-nama)
- Library: [Fumadocs](https://21st.dev/@fuma-nama/library/fumadocs)
- License: mit
- Tags: Banner
- npm dependencies: lucide-react
- Live preview: https://21st.dev/@fuma-nama/components/banner

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/fuma-nama/banner?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/banner.md