---
title: "Organic Light Leak Overlay"
description: "Finite CSS light-leak overlay for memory beats and motivated transitions"
---
import { InstallCommand } from "/snippets/install-command.jsx";
## Install
That writes one file: `compositions/organic-light-leak-overlay.html`.
## Add it to your video
It runs for 4 seconds at 1920×1080. Paste this into your composition:
```html index.html
```
Move it in time with `data-start`. Put it on a different timeline row with
`data-track-index`. See [data attributes](/concepts/data-attributes) for the rest.
## Source
```html
```
{/* hf:generated-footer */}
Tagged `light-leak` `film` `memory` `transition` `overlay` `media-treatment-overlay`.
## Related topics
- [Browse the complete Catalog](/catalog)
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
- [Build a richer composition](/go-further)