# CRT Effect

> A wrapper that overlays retro CRT monitor scanlines, vignette, flicker, and an animated scan-sweep line onto any content.

- Author: [The Gridcn](https://21st.dev/@thegridcn)
- Library: The Gridcn
- License: no-license
- Tags: Retro, Overlay, Crt, Scan Line, Monitor
- Live preview: https://21st.dev/@thegridcn/components/crt-effect

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/thegridcn/crt-effect?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/retro.md