anchor.diff: --description = 'the lumas-warenkorb application'
  --title = 'LUMAS - Fotografie, Fotokunst, Bilder online bei LUMAS'
  +-description = 'emil'
  +-title = 'EMIL'
   
   mixin head-desktop(options)
       doctype
  
positive.code:             meta(name='description', content='#{description}')
              meta(name='viewport', content='width=device-width, initial-scale=1 user-scalable=no')
              link(rel='icon' type='image/x-icon' href='favicon.ico')
              link(rel='stylesheet', href='app.css')
              <link rel="apple-touch-icon" href="ios/AppIcon.appiconset/Icon-60@2x.png" />
              <link rel="apple-touch-icon" sizes="180x180" href="ios/AppIcon.appiconset/Icon-60@3x.png" />
              <link rel="apple-touch-icon" sizes="76x76" href="ios/AppIcon.appiconset/Icon-76.png" />
              <link rel="apple-touch-icon" sizes="152x152" href="ios/AppIcon.appiconset/Icon-76@2x.png" />
              <link rel="apple-touch-icon" sizes="58x58" href="ios/AppIcon.appiconset/Icon-Small@2x.png" />
          body(ontouchstart="")
              block
  
negative.code:             title #{title}
              meta(name='description', content='#{description}')
              link(rel='icon' type='image/x-icon' href='favicon.ico')
              link(rel='stylesheet', href='client.css')
          block
  
  mixin head-mobile
      doctype
  