title: iTextSharp converting from HTML to PDF some CSS doesn't work
body: <p>I'm converting from html to pdf using iTextSharp. the problem is some css style doesn't work when converted to pdf when I try something like  margin-right:500px; or float:left; it doesn't work. however when I try something like color:red; it works.
  I'm using external css and this is how I'm converting </p>
  
  <pre><code>       MemoryStream cssStream = new MemoryStream(cssByteArray);
     MemoryStream htmlStream = new MemoryStream(htmlByteArray);
  XMLWorkerHelper.GetInstance().ParseXHtml(writer,document,htmlStream,cssStream);
  </code></pre>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>/*css*/
  /*this one doesn't work */
   .example{
  float:right;
  }
  
  /*this one doesn't work */
   .secondexample{
  margin-right:500px;
  }
  
  /*this one works*/
  .thirdexample{
    color:red;
  }</code></pre>
  </div>
  </div>
  </p>
  
  <p>am I missing something? does iTextSharp has full CSS support ? </p>
  
  <p>Thank You</p>