title: Swift 3: Centering UICollectionView Cell right on the middle of screen
body: <p>Been a few weeks on design practice and an idea came up on my mind, i was trying to center my <strong><code>UICollectionView</code></strong> in the middle of the screen, i have used the  <strong><code>Horizontal</code></strong> for this purpose, i tried to do that on storyboard, by editing the top,right,left,buttom pixels but it only works on the <strong>iPhone 7 Plus Simulator</strong> 
  <a href="https://i.stack.imgur.com/q3xOZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/q3xOZ.png" alt="ScreenShot 2017"></a></p>
  
  <p>it is all fine,  after switching to the normal iPhone 6 it goes to the left a bit while i got it centered on the property inspector</p>
  
  <p><a href="https://i.stack.imgur.com/WCL4P.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WCL4P.png" alt="Screenshot"></a></p>
  
  <p><strong>i am gonna be totally honest with you</strong> i haven't tried any codes to perform that action only in storyboard, </p>
  
  <p>if you got something helpful, share it, i would appreciate it</p>
  
  <p><strong>for reference</strong> this is my property inspector.....
  <em>thanks for visiting</em>
  <a href="https://i.stack.imgur.com/4tMF1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4tMF1.png" alt="Screen"></a></p>