I concur 100% !
There is no real reason to use <div> tags when defining a normal paragraph - just use a paragraph tag:
Code:
Change:
<div id="box3_539" class="para-normal-local4"><span class="char-normal-local2">yadda yadda yadda.</span></div>
<div id="box3_540" class="para-normal-local4"><span style="font-family: 'Times New Roman',
TimesNewRomanPSMT, Times, serif; font-size: 0.77419em; line-height:1.2;">yadda yadda yadda.</span></div>
To:
CSS:
p {font-family: serif}
HTML:
<p id="box3_539">yadda yadda yadda</p>
<p id="box3_540">yadda yadda yadda</p>
You could even lose the id tags unless there is some very compelling reason that you need to identify each paragraph independently??
Having all those inline styling, and classes saying "this is a normal paragraph" (instead of just using a normal paragraph tag) really bloats up your code and makes it much more complex than it needs to be.
It is much easier to have your styling in a centralized location (like a style sheet) where you can make changes to a single location and have it apply to your entire book...instead of having to update every paragraph every time.
There are definitely good arguments saying you shouldn't define the font, font-size, line-height, paragraph indents, etc. and you should leave that up to the users/readers to select in their own app/device...but that is your choice.
A couple good regex search and replace can fix your entire book very quickly.