Many of my ebooks have a page_styles.css with just the following:
	Code:
	@page {
  margin-bottom: 5pt;
  margin-top: 5pt;
}
 A Google search reveals "The @page CSS at-rule is used to modify some CSS properties when 
printing a document."
So...if I want to read the book on my Kindle not print it do I even need the CSS file?
The reason I ask is that using Modify ePub I can add styles I want, BUT they are added to every CSS file.  So I end up with a page_styles.css with all of the styles that I wanted added to the stylesheet.css as well. Safely deleting the page_styles.css file would solve that bloat!
The next question, of course, is, is there a plugin that would allow me to delete a specific file from a set of books?