anchor.diff:  
       body
           #wrapper
  -            header
  +            header.home
                   h1
                       a( href=homepage )
                           span kouto swiss
                   h2= description
                   div.buttons
                       a( href=github ) github
  -                    a( href="#" ) docs
  +                    a( href="docs.html" ) docs
   
               section.about
                   blockquote
  
positive.code: 
                  div.buttons
                      a( href=github ) github
                      a( href="#" ) docs
  
negative.code:         meta( charset="UTF-8" )/
          title kouto swiss - A complete CSS framework for Stylus
  
          meta( name="viewport", content="width=device-width, initial-scale=1.0, minimum-scale=1.0, minimal-ui" )/
  
          link( rel="stylesheet", href="styles/styles.css" )/
  
  