anchor.diff:                              a.github.holo-button(href='https://github.com/passy/twentiment')
                                   | Fork on Github
   
  -            h2 Low Level
  +            h3 Low Level
                   a(id='code-lowlevel')
   
               ul.elements(passy-isotope)
  
positive.code:                             a.gplay.holo-button(href='https://play.google.com/store/apps/details?id=de.weluse.android.whiterabbit')
                                  | Download from Google Play
  
              h2 Web
                  a(id='code-web')
  
              ul.elements(passy-isotope)
  
negative.code:                         a(href='#code-lowlevel') Low Level
  
              li.header.expandable
                  a(href='#papers') Papers
  
                  ul
                      li
  