=flex($justify: space-between, $alignItem: initial)
  display: -ms-flexbox
  display: -webkit-flex
  display: flex

  +prefixer(justify-content, $justify, webkit moz ms)
  +prefixer(align-items, $alignItem, webkit moz ms)
  justify-content: $justify
  align-items: $alignItem


=flex-rows
  +prefixer(flex-wrap, wrap, webkit ms)
  +prefixer(flex-direction, row, webkit ms)
  +prefixer(flex-flow, row wrap, webkit)

=order($place)
  +prefixer(order, $place, webkit ms)
  order: $place

=align-content($align)
  +prefixer(align-content, $align, webkit)
  align-content: $align

=align-self($align)
  +prefixer(align-self, $align, webkit)
  align-self: $align