---
title: "Code Highlight Sweep"
description: "A highlight band sweeps across a target line while the surrounding context dims — draws the eye to one line."
mode: "frame"
---
import { CatalogDetail, CatalogSlot } from "/snippets/catalog-detail.jsx";
import { InstallCommand } from "/snippets/install-command.jsx";
Code Highlight Sweep
A highlight band sweeps across a target line while the surrounding context dims — draws the eye to one line.
```html code-highlight.html
Code Highlight Sweep
loadConfig.js — Code Highlight Sweep
```
That writes one file: `compositions/code-highlight.html`.
## Add it to your video
It runs for 5 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.
{/* hf:generated-footer */}
Tagged `code` `code-animation` `highlight` `developer`.
## Related topics
- [Browse the complete Catalog](/catalog)
- [Add assets and Catalog items in the browser editor](/studio/assets-and-blocks)
- [Put blocks together into one video](/concepts/compositions)