Originally Posted by Toxaris
Personally I would use:
This will adjust the blank line with the font size to keep it in proportion.
I agree with using em units, particularly since such scene breaks occur in the general flow of the text and not as "headings" at the top of a screen.
While a style name can be any string of characters, I would suggest using a more descriptive name like "scene" or "scenebreak" instead of "center" for this. That way you can use "center" for a simpler centering style without the wide top and bottom margins. It makes reading the code at a later date much easier.
My personal approach is to style the <p> with the asterisks, or more often an image, using my .heading
style and then style the first <p> in the new scene using my .scene
style. This allows me to omit the asterisk line when only a blank gap is desired without having to add a unique style for that book. Using the same style names in all (or most) of my books makes creation and editing much easier.