[Home](./index.md) > [puppeteer](./puppeteer.md) > [CSSCoverage](./puppeteer.csscoverage.md) > [start](./puppeteer.csscoverage.start.md) ## CSSCoverage.start() method Signature: ```typescript start(options?: { resetOnNavigation?: boolean; }): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | options | { resetOnNavigation?: boolean; } | | Returns: Promise<void>