Originally Posted by ATDrake
2. That particular div looks superfluous, especially with a height of 0 em and nothing inside. If a div has nothing inside, assume it's cruft and delete.
That can be a dangeous assumption. An "empty div":
is one method of generating a blank line. Not a particularly good
method, because not all Mobi implementations will respect it (a Kindle does, but Kindle for PC does not), but nonetheless a commonly-seen one.