Thread: proper use and setting of text direction CSS vs structural in epub3
View Single Post
Old 03-23-2018, 03:09 PM   #3
jhowell
Grand Sorcerer
jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.jhowell ought to be getting tired of karma fortunes by now.
 
jhowell's Avatar
 
Posts: 7,109
Karma: 92190133
Join Date: Nov 2011
Location: Charlottesville, VA
Device: Kindles
Someone else with more knowledge about this can clarify, but my understanding is that EPUB 2 allows the HTML5 css properties "direction" and "unicode-bidi" for handling text direction, but EPUB3 instead uses the attributes "dir", "bdi" and "bdo" for the same purpose.

The EPUB 3 Accessibility Guidelines states:

Quote:
direction - The direction property is not supported in EPUB 3. HTML5 markup, such as the bdi and bdo elements and dir attribute, should be used to express directionality
jhowell is offline   Reply With Quote