Wrong spacing for code blocks in lists

[Atcold]

The spacing before the code block looks too thin and therefore incorrect.

We have thus defined two types of primitives:

• The first type creates new cells, either one by one or by layers. For the back-propagation algorithm, for example, there is the primitive newneurons:

  (setq layer (newneurons 5))

  This puts a list of five new cells into the variable layer.

I can see how GitHub rendering is also not correct (at least at the moment of writing this).
Is there a way to fix the CSS for this kind of typographical issue?

[Atcold]

Adding to custom-styles.scss the following

li .highlight {
  margin-top: 5px;
  margin-bottom: 5px;
}

fixes the problem.

Perhaps it should be there by default?