in a fashion requiring copyright permission, other than the making of an
exact copy.  The resulting work is called a "modified version" of the
earlier work or a work "based on" the earlier work.

  A "covered work" means either the unmodified Program or a work based
on the Program.

  To "propagate" a work means to do anything with it that, without

for equal-width flexbox columns\n      .col#{$infix} {\n        flex-basis: 0;\n        flex-grow: 1;\n        max-width: 100%;\n      }\n      .col#{$infix}-auto {\n        flex: 0 0 auto;\n        width: auto;\n        max-width: 100%; // Reset earlier grid tiers\n      }\n\n      @for $i from 1 through $columns {\n        .col#{$infix}-#{$i} {\n          @include make-col($i, $columns);\n        }\n      }\n\n      .order#{$infix}-first { order: -1; }\n\n      .order#{$infix}-last { order: $columns...