Font Style

Italic and Oblique are the options here, but you could pick either one.

Well, in theory, there should be a difference …

• An italic is a specially drawn, more cursive version of a typeface.
• And an oblique is merely a slanted version of the typeface.

… but in practice, only a few fonts have both versions. (Lucida Grande seems to be one, but that’s not a web font.)

When there’s no italic version available, oblique will be used anyway (or created on the fly). That’s why I always pick "italic", so that when a font might have both I’ll at least get the attractive option.