Quote:
Originally Posted by charleski
What's the difference between epub - standard and epub - simplified (ADE)?
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ADE has certain styling problems with CSS centering using auto, and does not support the display:table model. These are important for highly laid out content as can now be achieved with iPad and its fuller CSS model. It's a transparent option. This has been discussed on our
blog and
here ...
Styles on <table> <tr>
Content centered using margin: 0 auto 0 auto;
Content blocks using display: table and column/row children. In this case ADE doubles the text and dumps it on the page twice. This is a bug noted by ADE.
While the spec CSS properties footnote says "Reading Systems may set the value of any margin property whose specified value is auto to 0." in the real world that destroys a lot of content presentation value. The demands for ePub are moving beyond the novel!
As more and more publishers of rich and interactive content are moving to ePub, specifically targeting iPad, dumbing down ePub XHTML/CSS for a device series such as those using the two plus year old ADE engine doesn't delivery the required end-user experience. (iPad has it's share of issues too by the way!)
So we have provided an option to process left-aligned, de-style-bugs as an overt option for content owners targeting better layout and rendering for advanced devices. It only affects content that uses these properties.
OK, I know it looks like a small deal, but when it matters it matters.