---
title: "Lower Third — Mask Reveal"
description: "Cardless lower third: an accent sweep crosses and clip-path-reveals a heavy name, role fades up; for footage"
---

`lower-third` `overlay` `podcast` `interview` `bold`

<video className="w-full aspect-video rounded-xl object-cover bg-zinc-100 dark:bg-zinc-800" src="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/lt-mask-reveal.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/lt-mask-reveal.png" autoPlay muted loop playsInline />

## Add it to a project

### Ask your agent

```text
Add the Lower Third — Mask Reveal block from the HyperFrames Catalog to this project.
Replace the demo content with mine and match the existing design and timing.
```

### Install from the terminal

```bash
npx hyperframes add lt-mask-reveal
```

## Details

| Property | Value |
| --- | --- |
| Type | Block |
| Dimensions | 1920×1080 |
| Duration | 4.8s |

**Installed files**

| File | Target | Type |
| --- | --- | --- |
| `lt-mask-reveal.html` | `compositions/lt-mask-reveal.html` | hyperframes:composition |

## Use it

Ask your agent to replace the example content, match the project style, and place the block at the right moment in the video.

**Wiring it by hand.** The installed block can be added to a host composition with:

```html
<div data-composition-id="lt-mask-reveal" data-composition-src="compositions/lt-mask-reveal.html" data-start="0" data-duration="4.8" data-track-index="1" data-width="1920" data-height="1080"></div>
```

## Related topics

- [Browse the complete Catalog](/catalog)
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
- [Build a richer composition](/go-further)