Help with line spacing in bullet lists?

For what I’m writing, I have a lot of bullet lists. When I compile to ePub, there is no extra vertical space between the list items. They might as well be all in a single paragraph.

Scrivener has Format > Paragraph > Line and Paragraph Spacing…, which does exactly what I want in Scrivener, but has no apparent effect on ePub output. I think this is odd, because each bulleted item ends with a paragraph marker.

Is there some setting somewhere that keeps this from working? Better yet, is there something somewhere that I can tweak to set spacing between list items?

When compiling for ePub, there is an option to edit the custom CSS. The following code

li:not(:last-child) { padding-bottom: 10px; }
sets an extra 10 pixels after every list item except the last.