title: youtube video as web site background
body: <p>is there a way to embedd youtube video as a background of a web page with html, css and javascript with the actual site content on top? how?</p>
  
  <p>basically, it should be a video that auto plays, is muted (but the volume can be turned up by the visitor) and the site should work well being on top of it (the site is minimal so most of the video should be visible at all times). the site is minimal enough that no scroll bars would be visible by default in  most browsers and the video should be 100% width and height.</p>
  
  <p>examples? links?</p>
  
  <p>tried Google but couldn't find it.</p>
  
  <p>also it should work for videos not on youtube.</p>
  
  <p>html5 and css3 preferred :)</p>
  
  <p><strong>I REALLY NEED A LIVE EXAMPLE SOMEWHERE (or as close to) because i tried it all (as available via google and failed)</strong></p>
  
  <p>also, related - there doesn't seem to be (as per my own research) any way of slowing down the play of youtube videos (for example: 24 times slower) - true / false?</p>