How to reduce spacing below block titles

Hi!

Is there a way to reduce the vertical space that appears between the title of a list block and its content? There doesn’t seem to be anything in the Styles pane, and I couldn’t figure out any obvious (to me) CSS selectors that I could override.

In the example screen shot below, it is the area highlighted in the pink box that I am trying to reduce. This is the Studio view, but it appears similarly in the production view.