[Home](./index.md) > [puppeteer](./puppeteer.md) > [Mouse](./puppeteer.mouse.md) > [wheel](./puppeteer.mouse.wheel.md) ## Mouse.wheel() method Dispatches a `mousewheel` event. Signature: ```typescript wheel(options?: MouseWheelOptions): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | options | [MouseWheelOptions](./puppeteer.mousewheeloptions.md) | Optional: MouseWheelOptions. | Returns: Promise<void> ## Example An example of zooming into an element: ```js 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 }) ```