title: Transparent Iframe Body
body: <p>I need to have a (crossdomain) iframe with dynamic width and height.</p>
  
  <p>My question is,
  Can I create an iframe with 100% size and a transparent background that will show the parent of this iframe, behind it ?</p>
  
  <p>Can I attach a css property or a transparent gif for the iframe background to make that effect ?</p>
  
  <p>Thanks.</p>