title: How to simulate z-index for newsletter?
body: <p>So I'm trying to reproduce this newsletter with a <strong>button overlapping an image</strong>.</p>
  
  <p><a href="https://i.stack.imgur.com/y89Ww.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/y89Ww.png" alt="enter image description here"></a></p>
  
  <p>But so far however I try I end up with something like this : <a href="https://i.stack.imgur.com/9j42a.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9j42a.png" alt="enter image description here"></a></p>
  
  <p><a href="https://www.campaignmonitor.com/css/" rel="nofollow noreferrer">Since Z-Index is not supported by gmail</a> do you think what I want to do is possible? If yes can you redirect me to some kind of resources? Thank you</p>