title: How to have a scrollable floating Cardview like this?
body: <p>Does anyone know how to have a floating Cardview like this?
  <a href="http://chairnerd.seatgeek.com/images/autocomplete_checkout.gif" rel="noreferrer">http://chairnerd.seatgeek.com/images/autocomplete_checkout.gif</a></p>
  
  <p>The background image should be able to change programmatically and the cardviews should be scrollable. And the position of the first Cardview should be somewhere below the image. Thanks in advance!</p>