title: z-index and opacity issues
body: <p>I'm trying to make a wrapper at the back off all of my DIV's that will appear transparent (opacity: 0.6), but everything in front of that is appearing transparent too.</p>
  
  <p>Any ideas how to fix this?</p>
  
  <p>You can find the example here: <a href="http://testing.squaretise.com/" rel="nofollow noreferrer">http://testing.squaretise.com/</a> (I have given the wrapper (#wrap) a red border so you can interpret easier)</p>