anchor.diff:              li #[code figure] #[+tag('Sectioning Root','figure-sectioning-root')]
               li #[code figcaption]
               li #[code blockquote] #[+tag('Sectioning Root','blockquote-sectioning-root')]
  -        section
  +        section#lists
             h3 Lists
             ul
               li #[code ol]
  
positive.code:             li #[code code]
              li #[code kbd]
              li #[code samp]
        section
          h2 Embedded Content
          ul
            li #[code img] #[+tag('Nothing Content Model','img-nothing-content-model')]
        section
          h2 Form Content
          ul
            li #[code fieldset] #[+tag('Sectioning Root','fieldset-sectioning-root')]
            li #[code legend] #[+tag('Phrasing Content Model','legend-phrasing-content-model')]
            li #[code input] #[+tag('Nothing Content Model','input-nothing-content-model')]
            li #[code label] #[+tag('Phrasing Content Model','label-phrasing-content-model')] #[sup: +reference('label')]
        section
          h2 Interactive Content
          ul
            li #[code details] #[+tag('Sectioning Root','details-sectioning-root')]
  
negative.code:             sup
                +footnote('summary')
              | The #[code summary] element may contain either Phrasing Content, or exactly 1 Heading Element (#[code h1]&ndash;#[code h6])
      script(src="../../bower_components/jquery/dist/jquery.js")
      script(src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML,https://chharvey.github.io/chhlib/mathjax-localconfig.js")
      script(src="../../core/scripts/global.js")
  