$utilities: (
  'flex': (
    property: flex,
    class: flex,
    values: (fill: 1 1 auto)
  ),
  'flex-direction': (
    property: flex-direction,
    class: flex,
    values: (
      row: row,
      row-reverse: row-reverse,
      col: column,
      col-reverse: column-reverse
    )
  ),
  'flex-grow': (
    property: flex-grow,
    class: flex,
    values: (
      grow-0: 0,
      grow-1: 1,
    )
  ),
  'flex-shrink': (
    property: flex-shrink,
    class: flex,
    values: (
      shrink-0: 0,
      shrink-1: 1,
    )
  ),
  'flex-wrap': (
    property: flex-wrap,
    class: flex,
    values: wrap nowrap wrap-reverse
  ),
  'justify-content': (
    property: justify-content,
    class: justify-content,
    values: (
      start: flex-start,
      end: flex-end,
      center: center,
      between: space-between,
      around: space-around,
    )
  ),
  'align-content': (
    property: align-content,
    class: align-content,
    values: (
      start: flex-start,
      end: flex-end,
      center: center,
      between: space-between,
      around: space-around,
      stretch: stretch,
    )
  ),
  'align-items': (
    property: align-items,
    class: align-items,
    values: (
      start: flex-start,
      end: flex-end,
      center: center,
      baseline: baseline,
      stretch: stretch,
    )
  ),
  'align-self': (
    property: align-self,
    class: align-self,
    values: (
      auto: auto,
      start: flex-start,
      end: flex-end,
      center: center,
      baseline: baseline,
      stretch: stretch,
    )
  ),
);