---
description: API reference for rtk-fullscreen-toggle component (Web Components (HTML) Library)
title: rtk-fullscreen-toggle
image: https://developers.cloudflare.com/og-docs.png
---

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# rtk-fullscreen-toggle

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/realtime/realtimekit/ui-kit/api-reference/core/rtk-fullscreen-toggle/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/)

A button which toggles full screen mode for any existing `rtk-meeting` component in the DOM.

## Properties

| Property      | Type              | Required | Default         | Description                  |
| ------------- | ----------------- | -------- | --------------- | ---------------------------- |
| iconPack      | IconPack          | ❌        | defaultIconPack | Icon pack                    |
| size          | Size              | ✅        | \-              | Size                         |
| states        | States            | ✅        | \-              | States object                |
| t             | RtkI18n           | ❌        | useLanguage()   | Language                     |
| targetElement | HTMLElement       | ✅        | \-              | Target Element to fullscreen |
| variant       | ControlBarVariant | ✅        | \-              | Variant                      |

## Usage Examples

### Basic Usage

```html
<rtk-fullscreen-toggle></rtk-fullscreen-toggle>
```

### With Properties

```html
<rtk-fullscreen-toggle
 size="md"
 variant"button">
</rtk-fullscreen-toggle>
```

```html
<script>
  const el = document.querySelector("rtk-fullscreen-toggle");

</script>
```

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