Stylize Links to Blocks

The left is an example of a source note I am linking on the right note.

Can I change how this linked block (within the red circle) is displayed? Ideally, I’d like these linked blocks to appear similar to a typical block quote like:

This is a block quote.

I don’t find the way the link is currently displayed very elegant.

I am using the Prism theme. Thanks in advance for your advice.