anchor.diff:          { Container : string
             Size : StandardSize }
   
  +    and Modifiers =
  +        { Size : StandardSize
  +          Color : LevelAndColor }
  +
       and Progress =
           { Container : string
             Size : StandardSize
  
positive.code:     and FieldLayout =
          { IsHorizontal : string }
  
      and Icon =
          { Container : string
            Position : IconPosition
  
negative.code:               { Left = "has-icons-left"
                  Right = "has-icons-right" }
            State = { IsLoading = "is-loading" } }
  
      let columns : Columns =
          { Container = "columns"
            Column =
              { Container = "column"
                Width =
                  { IsOneQuarter = "is-one-quarter"
                    IsOneThird = "is-one-third"
                    IsHalf = "is-harl"
                    IsTwoThirds = "is-two-thirds"
                    IsThreeQuarters = "is-three-quarters"
                    Is1 = "is-1"
                    Is2 = "is-2"
                    Is3 = "is-3"
                    Is4 = "is-4"
                    Is5 = "is-5"
                    Is6 = "is-6"
                    Is7 = "is-7"
                    Is8 = "is-8"
                    Is9 = "is-9"
                    Is10 = "is-10"
                    Is11 = "is-11"
                    IsNarrow = "is-narrow" }
                Offset =
                  { IsOneQuarter = "is-offset-one-quarter"
                    IsOneThird = "is-offset-one-third"
                    IsHalf = "is-offset-harl"
                    IsTwoThirds = "is-offset-two-thirds"
                    IsThreeQuarters = "is-offset-three-quarters"
                    Is1 = "is-offset-1"
                    Is2 = "is-offset-2"
                    Is3 = "is-offset-3"
                    Is4 = "is-offset-4"
                    Is5 = "is-offset-5"
                    Is6 = "is-offset-6"
                    Is7 = "is-offset-7"
                    Is8 = "is-offset-8"
                    Is9 = "is-offset-9"
                    Is10 = "is-offset-10"
                    Is11 = "is-offset-11"
                    IsNarrow = "is-offset-narrow" }
  
                }
            Alignment =
              { IsCentered = "is-centered"
                IsVCentered = "is-vcentered" }
            Spacing =
              { IsMultiline = "is-multiline"
                IsGapless = "is-gapless"
                IsGrid = "is-grid" }
            Display =
              { OnMobile = "on-mobile"
                OnlyDesktop = "only-desktop" } }
  
      let delete : Delete =
          { Container = "delete"
  