Originally Posted by Jellby
It is generally a good idea to add some of those to chapter titles and similar elements. At the very least, I'd add:
hyphens: none; (CSS3 code, should work with ePub 3 books ?)
adobe-hyphenate; (Adobe-specific, works with most ebook readers)
others are probably more specific to certain readers. Hopefully, browser-based readers will support (maybe in some future) the CSS3 way in addition to their own codes...
I definitely would recommend the webkit variant, at a minimum, because iBooks supports it, but at least as of iOS 6, WebKit doesn't yet support the non-vendor-prefixed hyphens property, so unless iBooks is doing some magic, it probably doesn't, either.