[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [CSS](./puppeteer.protocol.css.md) > [CSSMedia](./puppeteer.protocol.css.cssmedia.md) > [sourceURL](./puppeteer.protocol.css.cssmedia.sourceurl.md) ## Protocol.CSS.CSSMedia.sourceURL property URL of the document containing the media query description. Signature: ```typescript sourceURL?: string; ```