Hi, Kovid.
I'm having an issue with some books that have CSS rules with similar names (identical, except for the use of capitals).
Example:
Code:
.Body-Text {
font-style: normal;
}
.Body-text {
font-style: italic;
}
In this situation, the Editor Preview uses both rules, but the Viewer uses only the last one, considering it like the same rule, so the text is always in italics.