[source, sass]
----
// Grid breakpoints
//
// Define the minimum dimensions at which your layout will change,
// adapting to different screen sizes, for use in media queries.

$grid-breakpoints: (
  xs:                                   0,
  sm:                                   576px,
  md:                                   768px,
  lg:                                   992px,
  xl:                                   1200px,
  xxl:                                  1400px
) !default;

@include _assert-ascending($grid-breakpoints, "$grid-breakpoints");
@include _assert-starts-at-zero($grid-breakpoints, "$grid-breakpoints");


// Grid containers
//
// Define the maximum width of `.container` for different screen sizes.

// container-max-widths
//
$container-max-widths: (
  sm:                                   540px,
  md:                                   720px,
  lg:                                   960px,
  xl:                                   1140px,
  xxl:                                  1320px
) !default;

@include _assert-ascending($container-max-widths, "$container-max-widths");


// Grid columns
//
// Set the number of columns and specify the width of the gutters.

$grid-columns:                          12 !default;
$grid-gutter-width:                     1.5rem !default;
$grid-row-columns:                      6 !default;

// Container padding

$container-padding-x:                   $grid-gutter-width !default;
----