<!-- Do not edit this file. It is automatically generated by API Documenter. --> [Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [CSS](./puppeteer.protocol.css.md) > [CollectClassNamesRequest](./puppeteer.protocol.css.collectclassnamesrequest.md) > [styleSheetId](./puppeteer.protocol.css.collectclassnamesrequest.stylesheetid.md) ## Protocol.CSS.CollectClassNamesRequest.styleSheetId property <b>Signature:</b> ```typescript styleSheetId: StyleSheetId; ```