title: iOS: How to Align The Center of a View With The Bottom of Another View With AutoLayout
body: <p>I want to make the center of the head imageView with the bottom of the blue title imageView's keep alignment.</p>
  
  <p>How can I do it by using Autolayout?</p>
  
  <p>screen 4.0inches
  <img src="https://i.stack.imgur.com/JQAPs.png" alt="[screen 4.7inches]">
  screen 4.7inches
  <img src="https://i.stack.imgur.com/sYN9L.png" alt="screen 4.0inches [screen 4.7inches"></p>