[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [CSS](./puppeteer.protocol.css.md) > [SourceRange](./puppeteer.protocol.css.sourcerange.md) > [startLine](./puppeteer.protocol.css.sourcerange.startline.md) ## Protocol.CSS.SourceRange.startLine property Start line of range. Signature: ```typescript startLine: integer; ```