anchor.diff:  
   Individual cell styles, including spans and repeats, are not supported.
   See https://github.com/bytesparadise/libasciidoc/issues/695[Issue #695].
  -
  -The style attribute for cell contents (specified in the cols attribute) is ignored (the "d" style for inline content is assumed).
  -See https://github.com/bytesparadise/libasciidoc/issues/694[Issue #694].
   
   The parser will likely be confused by ragged tables, or tables that do not use one line per row.
   See https://github.com/bytesparadise/libasciidoc/issues/637[Issue #637].
  
positive.code: majority of the same source code languages. However some more esoteric languages might not be supported.
  See https://github.com/alecthomas/chroma#supported-languages[Chroma's documentation] for details.
  
  == Callouts
  
  Libasciidoc does not support font or image based callouts yet.
  
  == Math
  
  MathML and equations (`[stem]` blocks) are not supported yet.
  
negative.code: 
  ....
  <div class="paragraph">
  <p>+hello,
  world+</p>
  </div>
  ....
  
  