Golden Ratio setup for bootstrap

_variables.scss

$gr: 1.61803398875;

$spacer: 1.25rem !default;

$spacers: (
  0: 0,
  1: $spacer / $gr / $gr / $gr,
  2: $spacer / $gr / $gr,
  3: $spacer / $gr,
  4: $spacer,
  5: $spacer * $gr,
  6: $spacer * $gr * $gr,
  7: $spacer * $gr * $gr * $gr,
) !default;

$sizes: (
  7: 100%,
  6: 100% / $gr,
  5: 100% / $gr / $gr,
  4: 100% / $gr / $gr / $gr,
  3: 100% / $gr / $gr / $gr / $gr,
  2: 100% / $gr / $gr / $gr / $gr / $gr,
  1: 100% / $gr / $gr / $gr / $gr / $gr / $gr,
  0: 100% / $gr / $gr / $gr / $gr / $gr / $gr / $gr,
) !default;