[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [CSS](./puppeteer.protocol.css.md) > [CSSStyleSheetHeader](./puppeteer.protocol.css.cssstylesheetheader.md) > [startLine](./puppeteer.protocol.css.cssstylesheetheader.startline.md) ## Protocol.CSS.CSSStyleSheetHeader.startLine property Line offset of the stylesheet within the resource (zero based). Signature: ```typescript startLine: number; ```