// $flex: flex | inline-flex
// $direction: row | row-reverse | column | column-reverse
// $wrap: wrap | no-wrap | wrap-reverse
// $justify: flex-start | flex-end | center | space-between | space-around
// $items: flex-start | flex-end | center | baseline | stretch
// $content: flex-start | flex-end | center | space-between | space-around | stretch

flex($flex = flex, $direction = false, $wrap = false, $justify = false, $items = false, $content = false)
  if $wrap is nowrap
    $wrap = no-wrap

  if $wrap is reverse
    $wrap = wrap-reverse

  if $justify is start
    $justify = flex-start

  if $justify is end
    $justify = flex-end

  if $justify is between
    $justify = space-between

  if $justify is around
    $justify = space-around

  if $items is start
    $items = flex-start

  if $items is end
    $items = flex-end

  if $content is start
    $content = flex-start

  if $content is end
    $content = flex-end

  if $content is between
    $content = space-between

  if $content is around
    $content = space-around

  display: $flex
  if $content
    justify-content: $justify
  if $direction
    flex-direction: $direction
  if $wrap
    flex-wrap: $wrap
  if $items
    align-items: $items
  if $content
    align-content: $content




// $order: <number>
// $grow: <number>
// $shrink: <number>
// $basis: <length> | auto
// $justify: flex-start | flex-end | center | space-between | space-around
// $align: auto | flex-start | flex-end | center | baseline | stretch
flex-item($order = false, $grow = false, $shrink = false, $basis = false, $align = false)
  if $align == start
    $align = flex-start

  if $align == end
    $align = flex-end

  if $order
    order: $order
  if $align
    align-self: $align
  if $grow
    flex-grow: $grow
  if $shrink
    flex-shrink: $shrink
  if $basis
    flex-basis: $basis