[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [CSS](./puppeteer.protocol.css.md) > [CSSStyleSheetHeader](./puppeteer.protocol.css.cssstylesheetheader.md) > [length](./puppeteer.protocol.css.cssstylesheetheader.length.md) ## Protocol.CSS.CSSStyleSheetHeader.length property Size of the content (in characters). Signature: ```typescript length: number; ```