title: How to write styles to callouts wpf
body: <p>I'm using the next namespace (<a href="http://schemas.microsoft.com/expression/2010/drawing" rel="nofollow">http://schemas.microsoft.com/expression/2010/drawing</a>).<br>
  I've two controls for the collout which use the same styles.
  i want to write some reusable style for those two controls, but no success...</p>
  
  <p>Any suggestions?</p>