[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Input](./puppeteer.protocol.input.md) > [SynthesizeScrollGestureRequest](./puppeteer.protocol.input.synthesizescrollgesturerequest.md) > [yDistance](./puppeteer.protocol.input.synthesizescrollgesturerequest.ydistance.md) ## Protocol.Input.SynthesizeScrollGestureRequest.yDistance property The distance to scroll along the Y axis (positive to scroll up). Signature: ```typescript yDistance?: number; ```