title: How to make horizontal UICollectionView with Swift
body: <p>I want to display a list of product descriptions inside collection view cells and I'm using <code>dequee</code> for that.</p>
  
  <p>I want to make sure that it only scrolls horizontally and not vertically at all.</p>
  
  <p>The cell's width is 180px and the total number of my items is different every time.</p>
  
  <p>I have tried a lot but the <code>scrollView</code> doesn't extend it's width at all.</p>