flex.styl

wrap(what)
  if what == '1'
    flex-wrap wrap
  if what == '0'
    flex-wrap nowrap

  if what == 'true'
    flex-wrap wrap
  if what == 'false'
    flex-wrap nowrap

  if what == 'wrap'
    flex-wrap wrap
  if what == 'nowrap'
    flex-wrap nowrap

  if what == 'reverse'
    flex-wrap  wrap-reverse

justify(what)
  if what == 'start'
    justify-content flex-start
  if what == 'center'
    justify-content center
  if what == 'end'
    justify-content flex-end

  if what == 'between'
    justify-content space-between
  if what == 'around'
    justify-content space-around


align(what)
  if what == 'start'
    align-items flex-start
  if what == 'center'
    align-items center
  if what == 'end'
    align-items flex-end

  if what == 'stretch'
    align-items stretch
  if what == 'baseline'
    align-items baseline

flex(what)
  if what == 'line'
    display inline-flex
  if what == 'styl'
    display flex

  if what == 'center'
    justify center
    align center

  if what == 'row'
    flex-direction row
  if what == 'column'
    flex-direction column

  if what == 'grow'
    flex-grow 1
  if what == 'nogrow'
    flex-grow 0

  if what == 'shrink'
    flex-shrink 1
  if what == 'noshrink'
    flex-shrink 0