puppeteer/website/versioned_docs/version-21.2.1/api/puppeteer.mouse.wheel.md
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chore: release main (#10897)
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---
sidebar_label: Mouse.wheel
---
# Mouse.wheel() method
Dispatches a `mousewheel` event.
#### Signature:
```typescript
class Mouse {
wheel(options?: Readonly<MouseWheelOptions>): Promise<void>;
}
```
## Parameters
| Parameter | Type | Description |
| --------- | --------------------------------------------------------------------- | ------------------------------------------------------ |
| options | Readonly&lt;[MouseWheelOptions](./puppeteer.mousewheeloptions.md)&gt; | _(Optional)_ Optional: <code>MouseWheelOptions</code>. |
**Returns:**
Promise&lt;void&gt;
## Example
An example of zooming into an element:
```ts
await page.goto(
'https://mdn.mozillademos.org/en-US/docs/Web/API/Element/wheel_event$samples/Scaling_an_element_via_the_wheel?revision=1587366'
);
const elem = await page.$('div');
const boundingBox = await elem.boundingBox();
await page.mouse.move(
boundingBox.x + boundingBox.width / 2,
boundingBox.y + boundingBox.height / 2
);
await page.mouse.wheel({deltaY: -100});
```