title: How to set aspect ratio in stack view?
body: <p>I am trying to improve my app to looks the same on every iPhone device. I started designing on iPhone 8 plus.
  I added 3 buttons to the view and set 3 constraints(width/height and aspect ratio) <code>1st button = Width:300 Height: 65 aspect ratio 
  2nd button = Width: 175 Height: 65 aspect ratio 
  3rd button = Width: 200 Height: 65 aspect ratio</code></p>
  
  <p>I added them to stackView and set some options<code>(axis: vertical , alignment: center ,distribution: fill proportionally, spacing: 19)</code> 
  Now i want to set the stackView so it will looks exactly the same on every device.<a href="https://i.stack.imgur.com/zkrep.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zkrep.png" alt="my storyboard"></a>. When i add 3 constraints (top/right/left + aspect ratio) i dont get the results i want. Any idea what i am doing wrong?</p>