title: Highlight part of the code in a Jupyter cell
body: <p>Is there a way to highlight certain lines of a Jupyter cell? Something similar to the following image (I created that with a photo editor):</p>
  
  <p><a href="https://i.stack.imgur.com/4vmkF.png" rel="noreferrer"><img src="https://i.stack.imgur.com/4vmkF.png" alt="enter image description here"></a></p>
  
  <p>I don't mean a selection with the cursor, but something permanent. 
  This would be useful for presentations when you want to highlight newly added code for example. </p>