---
sidebar_label: Mouse.wheel
---

# Mouse.wheel() method

Dispatches a `mousewheel` event.

### Signature

```typescript
class Mouse {
  abstract wheel(options?: Readonly<MouseWheelOptions>): Promise<void>;
}
```

## Parameters

<table><thead><tr><th>

Parameter

</th><th>

Type

</th><th>

Description

</th></tr></thead>
<tbody><tr><td>

options

</td><td>

Readonly&lt;[MouseWheelOptions](./puppeteer.mousewheeloptions.md)&gt;

</td><td>

_(Optional)_ Optional: `MouseWheelOptions`.

</td></tr>
</tbody></table>

**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});
```
