Originally Posted by Hitch
+1 for orphaned classes. To me, THAT idea is far more important than deleted unused styles from a ss.
It sounds like it should not be too hard to combine the two to find classes that do not exist in the CSS and CSS classes that do not exist in the XML.
A popular class used is <body class="text"> where text does not exist in the CSS. Also, dived classes are used at the beginning of a chapter that have no CSS style. I tend to remove the divs that div for the chapter title and then div for the body. No need of them at all.