title: Dynamic height of UIWebView with auto layout
body: <p>I have a problem with setting the height of an <code>UIWebView</code> dynamically. The webview loads a product description which contains html. I want the <code>UIWebView</code> to change its height based on the contents of the description. The parent scrollview should also change its height, but then based on the height of the <code>UIWebView</code>. </p>
  
  <p>Can anyone explain to me how I can achieve the desired behavior of my views?</p>
  
  <p>This is my view hierarchy:</p>
  
  <p><img src="https://i.stack.imgur.com/HlRPF.png" alt="enter image description here"></p>