title: How to change uiview's height using auto layout?
body: <p>So I created this scenario in order to understand how views increase in height according to their content. However am still not able to make it happen. </p>
  
  <p>This is what I have now:</p>
  
  <p><img src="https://i.stack.imgur.com/xH1ym.png" alt="enter image description here"></p>
  
  <p>the textview is growing according to content. however the uiview containing it is disappearing. what constraints should I use so that when the uitextview becomes bigger, its parent view also increase in height?</p>