anchor.diff:  
       //- tech specs and performance
       div.Site-content-container
  +      a(name="technical-specs")
         div.Feature-container-column
           div.Grid.Grid--justifyCenter.Grid--center.Grid--alignContentCenter.Feature-row
             div.Grid-cell.Grid-cell--full
  
positive.code:     //- Modular & Hackable
      div.Site-gray-bkg    
        div.Site-content-container
          div.Feature-container-column
          div.Grid.Grid--1of2.Grid--justifyCenter.Grid--center.Grid--alignContentCenter.Feature-row
           div.Grid-cell
  
negative.code: 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']
  