// padding and margin
$spacer: 1rem;
$spacers: (
  0: 0,
  1: ($spacer * .25),
  2: ($spacer * .5),
  3: $spacer,
  4: ($spacer * 2),
  5: ($spacer * 3),
  6: ($spacer * 4.5),
  7: ($spacer * 6.5)
);