title: Working with Top Layout Guide in UIScrollView through Auto Layout
body: <p>I want to use the <code>Top Layout Guide</code> in the <code>UIScrollView</code> through Auto Layout. Without the <code>UIScrollView</code> Auto Layout works well with <code>Top Layout Guide</code>.
  <img src="https://i.stack.imgur.com/dP8BC.png" alt="enter image description here"></p>
  
  <p>But when I embed the <code>UIButton</code> in <code>UIScrollView</code>, it doesn't.
  <img src="https://i.stack.imgur.com/svr5l.png" alt="enter image description here"></p>
  
  <p>I know that is because <code>UIScrollView</code> is not the same hierarchy level with <code>Top Layout Guide</code>. But I think there may be a good solution to resolve this issue.</p>