title: How can I put an outline rectangle underneath an image as shown in the following image
body: <p>Probably my question is fairly simple and I apologize for this but started shortly with html and css and I still do not have much practice.
  I would like to know how I can put a rectangle underneath an image (jpeg or css) as shown in the following image:</p>
  
  <p><a href="https://i.stack.imgur.com/2JTv0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2JTv0.png" alt="My problem"></a></p>