[Home](./index.md) > [puppeteer](./puppeteer.md) > [CSSCoverage](./puppeteer.csscoverage.md) > [(constructor)](./puppeteer.csscoverage._constructor_.md) ## CSSCoverage.(constructor) Constructs a new instance of the `CSSCoverage` class Signature: ```typescript constructor(client: CDPSession); ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | client | [CDPSession](./puppeteer.cdpsession.md) | |