$z-layers: (
  'spinner-fixed': 4000,
  'modal': 3500,
  'tooltip': 3625,
  'alert': 3750,
  'nav': 3000,
  'dropdown': 2250,
  'breadcrumb': 2000,
  'spinner-absolute': 1000,
  'default': 1,
  'below': -1
);

$animation-in-out-quadratic: cubic-bezier(0.46, 0.03, 0.52, 0.96);