Quote:
Originally Posted by meme
But if anyone who knows the spec and the site well can confirm it really should be CSS 2 let me know.
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ePub uses its own subset of CSS, it's not 2 nor 2.1 nor 3, according to the spec:
This specification defines a style language based on CSS 2. (Note that the CSS 2.1 specification is currently still at "Working Draft" status.)
[...]
A conforming Reading System
must render all OPS CSS 2.0
required subset properties. A Reading System
may support CSS properties beyond the OPS CSS 2.0 required subset, however, any unsupported properties
must be gracefully degraded per the CSS 2.0 specification.
Regarding the syntax, I don't think there's any difference between standard CSS and ePub-flavoured one, but as for the supported properties and values there are some important changes/limitations.