text: /// Grid system
  //
  // Generate semantic grid columns with these mixins.
  
  @mixin make-container($gutter: $grid-gutter-width) {
    margin-left: auto;
    margin-right: auto;
    padding-left:  ($gutter / 2);
    padding-right: ($gutter / 2);
    @if not $enable-flex {
      @include clearfix();
    }
  }
  
  
  // For each breakpoint, define the maximum width of the container in a media query
  @mixin make-container-max-widths($max-widths: $container-max-widths) {
    @each $breakpoint, $container-max-width in $max-widths {
      @include media-breakpoint-up($breakpoint) {
        max-width: $container-max-width;
      }
    }
  }
  
  @mixin make-row($gutter: $grid-gutter-width) {
    @if $enable-flex {
      display: flex;
      flex-wrap: wrap;
    } @else {
      @include clearfix();
    }
    margin-left:  ($gutter / -2);
    margin-right: ($gutter / -2);
  }
  
  @mixin make-col($gutter: $grid-gutter-width) {
    position: relative;
    @if not $enable-flex {
      float: left;
    }
    min-height: 1px;
    padding-left:  ($gutter / 2);
    padding-right: ($gutter / 2);
  }
  
  @mixin make-col-span($size, $columns: $grid-columns) {
    @if $enable-flex {
      flex: 0 0 percentage($size / $columns);
    } @else {
      width: percentage($size / $columns);
    }
  }
  
  @mixin make-col-offset($size, $columns: $grid-columns) {
    margin-left: percentage($size / $columns);
  }
  
  @mixin make-col-push($size, $columns: $grid-columns) {
    left: if($size > 0, percentage($size / $columns), auto);
  }
  
  @mixin make-col-pull($size, $columns: $grid-columns) {
    right: if($size > 0, percentage($size / $columns), auto);
  }
  
  @mixin make-col-modifier($type, $size, $columns) {
    // Work around the lack of dynamic mixin @include support (https://github.com/sass/sass/issues/626)
    @if $type == push {
      @include make-col-push($size, $columns);
    } @else if $type == pull {
      @include make-col-pull($size, $columns);
    } @else if $type == offset {
      @include make-col-offset($size, $columns);
    }
  }
  