anchor.diff:  block main
     //- Title block
     div(id="Pupil" class="Site-transform")
  +    a(name="top")
  +
       - var page_data = contents.pupil['index.json']
       - var page_meta = page_data.metadata
       - var pupil_slides_data = contents.pupil.features['slides_pupil_drawings.json']
  
positive.code:     //- half width slider
      section(style="background-color:#6f7679;")
        div.Site-content-container
          div.Feature-container-column
            div.Grid.Grid--center
              div.Grid-cell.Grid-cell--full
  
negative.code:     //- open source
      div.Site-gray-bkg
        div.Site-content-container
          a(name="open-source")
          div.Feature-container-column
          div.Grid.Grid--1of2.Grid--justifyCenter.Grid--center.Grid--alignContentCenter.Feature-row
            div.Grid-cell
  