With this change, we reduce the amount of inline CSS used
for EPUBs. Almost everything is now in the default EPUB
CSS (`data/epub.css`), which can be overridden either by
putting `epub.css` in the user data directory or by using
`--css` on the command line. Inline styles are only used
for syntax highlighting (which depends on the style specified,
and is only included on pages with highlighted code) and
for bibliography formatting (which can depend on the CSL
style, and is only used in the page containing the bibliography).
Note that, for compatibility with older readers, we don't
use flexbox to style `column/columns` divs by default, as
we do in HTML. Instead, we use an older method which only
works when there are two `column` divs inside a `columns`
div. If you need more than two columns and aren't worried
about support for older EPUB readers, you can modify the
default CSS (there is a comment in the CSS telling you what to do).
Closes#8379.
This fixes a problem in iBooks v2.4 with our earlier
horizontally scrolling code blocks. The problem seems to
be a bug in iBooks, not pandoc, but since iBooks is a major
target we're changing pandoc's default behavior so that
pandoc-produced epubs work on that platform.
Closes#6242.
* Add 'landmarks' id attribute to the landmarks nav.
* Replace old default CSS removing numbers from ol.toc li
with new rules that match `nav#toc ol, nav#landmarks ol`.
* We keep the `toc` class on `ol` for backwards compatibility.
Instead, just use an a element with class `footnoteRef`.
This allows more styling options, and provides better results
in some readers (e.g. iBooks, where anything inside the a
tag breaks popup footnotes).
Closes#1995.
* The TOC is included in `<spine>`, but `linear` is set
to `no` unless the `--toc` option is specified.
* Include `<guide>` element in OPF.
* This should allow the TOC to be useable in Kindles when
converted with kindlegen.
* Results validate with epubcheck 3.0 for both epub and epub3
output.
* Closes#773.
Suraj Patil