&:not(:disabled):not(.disabled):active,\n  &:not(:disabled):not(.disabled).active {\n    @include box-shadow($btn-active-box-shadow);\n\n    &:focus {\n      @include box-shadow($btn-focus-box-shadow, $btn-active-box-shadow);\n    }\n  }\n}\n\n// Future-proof disabling of clicks on `<a>` elements\na.btn.disabled,\nfieldset:disabled a.btn {\n  pointer-events: none;\n}\n\n\n//\n// Alternate buttons\n//\n\n@each $color, $value in $theme-colors {\n  .btn-#{$color} {\n    @include button-variant($value,...