title: iTextSharp StyleSheet equivalent
body: <p>When using the <code>HTMLWorker</code> to covert HTML into PDF elements we can provide a <code>StyleSheet</code> instance that can be used to style the generated elements.</p>
  
  <p>Unfortunately the CSS-to-PDF conversion is quite limited (it doesn't seem possible to indent a list for example) so I wondered if there is an equivalent iTextSharp "PDF Stylesheet" we can declare, which will be used when elements are written to the document?</p>
  
  <p>Alternatively are there any events we can hook into in order to walk the element tree and apply our styles, before the document is written?</p>