// align-self as
$align-self : (
  ( vals: (
    'c' : center,
    's' : stretch,
    'e' : end,
    'fs' : flex-start,
    'fe' : flex-end,
  ),),
  ( vals: (
    'c' : center,
    's' : stretch,
    'e' : end,
    'fs' : flex-start,
    'fe' : flex-end,
  ), bp: $bp-800w-mx, ),
  ( vals: (
    'c' : center,
    's' : stretch,
    'e' : end,
    'fs' : flex-start,
    'fe' : flex-end,
  ), bp: $bp-600w-mx, ),
);