title: Add missing Constraints not doing its job properly
body: <p>This is what I see on my storyboard.</p>
  
  <p><img src="https://i.stack.imgur.com/Vc6Ja.png" alt="enter image description here"></p>
  
  <p>This is what I see in the simulator (iPhone6)</p>
  
  <p><img src="https://i.stack.imgur.com/Zd4SA.png" alt="enter image description here"></p>
  
  <p>I added constraints by doing "clear constraints" -> "add missing constraints."</p>
  
  <p><strong>Q.</strong> How come add missing constraints did not properly align the boxes in the middle, and how do I solve this problem?</p>
  
  <p><strong>Update:</strong> the problem hasn't been resolved even after width constraints.</p>
  
  <p><img src="https://i.stack.imgur.com/ZR7ZS.png" alt="enter image description here">
  <img src="https://i.stack.imgur.com/ZhXFS.png" alt="enter image description here"></p>