.col#{$infix}-#{$i} {\n        @extend %grid-column;\n      }\n    }\n    .col#{$infix},\n    .col#{$infix}-auto {\n      @extend %grid-column;\n    }\n\n    @include media-breakpoint-up($breakpoint, $breakpoints) {\n      // Provide basic `.col-{bp}` classes for equal-width flexbox columns\n      .col#{$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...