padding-right: $gutter / 2;\n  padding-left: $gutter / 2;\n}\n\n@mixin make-col($size, $columns: $grid-columns) {\n  flex: 0 0 percentage($size / $columns);\n  // Add a `max-width` to ensure content within each column does not blow out\n  // the width of the column. Applies to IE10+ and Firefox. Chrome and Safari\n  // do not appear to require this.\n  max-width: percentage($size / $columns);\n}\n\n@mixin make-col-offset($size, $columns: $grid-columns) {\n  $num: $size / $columns;\n  margin-left: if($num...