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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Protocol](./puppeteer.protocol.md) &gt; [CSS](./puppeteer.protocol.css.md) &gt; [StyleSheetAddedEvent](./puppeteer.protocol.css.stylesheetaddedevent.md) &gt; [header](./puppeteer.protocol.css.stylesheetaddedevent.header.md)

## Protocol.CSS.StyleSheetAddedEvent.header property

Added stylesheet metainfo.

<b>Signature:</b>

```typescript
header: CSSStyleSheetHeader;
```