background-color: transparent;\n  }\n\n  &:not(:disabled):not(.disabled):active,\n  &:not(:disabled):not(.disabled).active,\n  .show > &.dropdown-toggle {\n    color: color-yiq($active-background);\n    background-color: $active-background;\n    border-color: $active-border;\n\n    &:focus {\n      // Avoid using mixin so we can pass custom focus shadow properly\n      @if $enable-shadows and $btn-active-box-shadow != none {\n        box-shadow: $btn-active-box-shadow, 0 0 0 $btn-focus-width rgba($color, .5);\n ...