Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.14)
// Compass (v1.0.3)
// ----

@import "compass";


.toto{
  @include flexbox((
            display: box,
            box-orient: vertical,
            box-direction: reverse,
            box-align: start
  ), $version : 1);

  @include flexbox((
          display: flexbox,
          flex-wrap: nowrap,
          flex-direction: column-reverse
  ), $version : 2);

  @include flexbox((
          display: flex,
          flex-wrap: nowrap,
          flex-direction: column-reverse
  ));
}

.titi{
  @include flexbox((flex: 1), $version: 1);
  @include flexbox((flex: 1), $version: 2);
  @include flex(1);
}

SassMeister-output.css

.toto {
  display: -moz-box;
  -moz-box-orient: vertical;
  -moz-box-direction: reverse;
  -moz-box-align: start;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-box-direction: reverse;
  -webkit-box-align: start;
  display: -ms-flexbox;
  -ms-flex-wrap: nowrap;
  -ms-flex-direction: column-reverse;
  display: -webkit-flex;
  -webkit-flex-wrap: nowrap;
  -webkit-flex-direction: column-reverse;
  display: flex;
  flex-wrap: nowrap;
  flex-direction: column-reverse;
}

.titi {
  -moz-flex: 1;
  -webkit-flex: 1;
  -ms-flex: 1;
  -webkit-flex: 1;
  flex: 1;
}