title: How to darken background when iframe is opened?
body: <p>I found an excellent tutorial online in which the opening of a CSS box creates a "blanket" layer in the background.</p>
  
  <p><a href="http://www.pat-burt.com/csspopup.html" rel="nofollow">http://www.pat-burt.com/csspopup.html</a>
  ^Just click "Click Here To Open The Pop Up"</p>
  
  <p>However, I can't get the same effect to work with iFrames. What happens is the blanket layer goes over the iFrame and the background of the page.</p>
  
  <p>Any suggestions as to how this can be done?</p>
  
  <p>Edit:</p>
  
  <p>Ok so I use a script to create an iframe based on the link. </p>
  
  <p> So would I just add z-index in after height? </p>