anchor.diff:        div.bs-docs-example
           each v in ROLES
             - var classname = 'sui-btn btn-block btn-xlarge'
  -          if v
  +          if v[0]
               - classname += ' btn-' + v[0]
             |<a href='javascript:void(0);' class='#{classname}'>#{v[1]}</a>
             | 
  
positive.code:       div.bs-docs-example
          each v in ROLES
            - var classname = 'sui-btn'
            if v
              - classname += ' btn-' + v[0]
            |<a href='javascript:void(0);' class='#{classname}'><i class='sui-icon icon-pencil'></i>#{v[1]}</a>
            | 
  
negative.code:             - var classname = 'sui-btn'
              if s
                - classname += ' btn-' + s
              if r[0] 
                - classname += ' btn-' + r[0]
              | <a href='javascript:void(0);' class='#{classname}'>#{r[1]}</a>
              | 
  