title: How to set height of containers in stack view?
body: <p>I'd like to ask you if it's possible to set height in percentage of each container placed in vertical stack view? I want to have 3 containers in stack view. First should take 40% of screen size, second 20% and third 40%. Thank you</p>
  
  <p><a href="https://i.stack.imgur.com/eVUhi.png" rel="noreferrer"><img src="https://i.stack.imgur.com/eVUhi.png" alt="enter image description here"></a></p>