title: How to display one scrollable row in UICollectionViewController
body: <p>I would like to show just one row in my collectionView. This one should be scrollable but the Simulator always includes a line break and my view is not scrollable at all.</p>
  
  <p>This is my configuration in my storyboard:</p>
  
  <p><a href="https://i.stack.imgur.com/AbktK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AbktK.png" alt="configuration"></a></p>
  
  <p>But somehow this is the result:</p>
  
  <p><a href="https://i.stack.imgur.com/ladsk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ladsk.png" alt="simulator"></a></p>
  
  <p>Thanks!</p>