anchor.diff:            dd.update: time(datetime="2015-03-08 14:57") Mar 8, 2015 #[span.tod  2:57 PM]
             dd.update: time(datetime="2016-02-14 01:15") Feb 14, 2016 #[span.tod  1:15 AM]
             dd.update: time(datetime="2016-03-06 15:41") Mar  6, 2016 #[span.tod  3:42 PM]
  +          dd.update: time(datetime="2016-03-24 13:38") Mar 24, 2016 #[span.tod  1:38 PM]
             dd.update
  -            time(datetime="2016-03-24 13:38" itemprop="dateModified") Mar 24, 2016 #[span.tod  1:38 PM]
  +            time(datetime="2016-12-05 12:28" itemprop="dateModified") Dec  5, 2016 #[span.tod 12:28 PM]
               span.o-Textbox.c-Label.c-Label--dang.-ml-1 Latest
           nav#table-contents
             h2 Table of Contents
  
positive.code:               The #[code footer] element should contain secondary information, data about
                #[em the content in the section], such as copyright information, contact information,
                related links or references, and footnotes.
              footer: p: small Neither element may contain any #[code header] or #[code footer] descendants.
            li #[code h1]&ndash;#[code h6] #[+tag('Phrasing Content Model','hn-phrasing-content-model')]
            li #[code address] #[sup: +reference('address')]
        section#grouping-content
          h2 Grouping Content
          p May be used where Flow Content is expected.
  
negative.code:             | Each #[dfn#sectioning-content Sectioning Content] adds a section to the #[span.c-Acro DO].
            li
              sup
                +footnote('hn-heading-content')
              | #[dfn#heading-content Heading Content] provides a title for a #[b Sectioning Content] in the #[span.c-Acro DO].
            li
              sup
                +footnote('hr-nothing-content-model')
                +footnote('col-nothing-content-model')
                +footnote('br-nothing-content-model')
  