title: How to create a UITableViewCell with a transparent background
body: <p>I'm trying to set the background color of a <code>UITableViewCell</code> to transparent. But nothing seems to work. I have some images/buttons inside the <code>tableViewCell</code> and I would like to make the white <code>grouptableview</code> background disappear to get a 'floating' effect for the images and buttons (as if they were not inside the <code>tableview</code>).</p>
  
  <p>Any idea how this could be accomplished?</p>