I'm probably no less picky than anyone, but would be satisfied with just:
<p><b>[12]</b> Louis David, a famous French Painter.</p>
or equivalent, because I'm usually not trying to replicate a given layout, but to create one that looks fine and comfortable. Also, note that by using a table (or a hanging indent) you are effectively reducing the available text width, which might not be a very good idea for verbose footnotes on a narrow screen...