// visibility v
$visibility : (
  ( vals: (
    'h': hidden,
    'v' : visible,
    'c' : collapse,
  ),),
  ( vals: (
    'h': hidden,
    'v' : visible,
    'c' : collapse,
  ), bp: $bp-800w-mx,),
  ( vals: (
    'h': hidden,
    'v' : visible,
    'c' : collapse,
  ), bp: $bp-600w-mx,),
);