> as […] unsupported by CSS Actually, slap `hyphens: auto` onto the CSS (since its default value is `manual`), and whatever your ebook reader does for things l

> as […] unsupported by CSS Actually, slap `hyphens: auto` onto the CSS (since its default value is `manual`), and whatever your ebook reader does for things like hyphenation and justification is almost certainly spec-compliant, because all of that stuff is explicitly UA-defined these days.