title: How to make an element transparent to clicks but still visible?
body: <p>I'm interested in putting an inset box shadow on something like an iframe. While the strategy of overlaying a div over the iframe gives the expected visual display, the div subsequently blocks clicks on the iframe itself.</p>
  
  <p>Sample: <a href="http://jsfiddle.net/YqXPg/" rel="noreferrer">http://jsfiddle.net/YqXPg/</a></p>
  
  <p>So is there a way to pull off the inset shadow as a "framing" effect?</p>