This was written a couple of years ago and little has been done with it since. I've been trying to find documentation for this notation and haven't found anything.
header
+display(flex)
+flex-flow(row-reverse wrap)
+justify-content(flex-start)
+align-items(center)
+align-content(flex-start)
width: 100%
I thought it was shorthand from Bourbon but there isn't any documentation about it. Is it from a previous version of Bourbon?