vendor/twbs/bootstrap/scss/mixins/_badge.scss


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@mixin badge-variant($bg) {
  color: color-yiq($bg);
  background-color: $bg;

  @at-root a#{&} {
    @include hover-focus() {
      color: color-yiq($bg);
      background-color: darken($bg, 10%);
    }

    &:focus,
    &.focus {
      outline: 0;
      box-shadow: 0 0 0 $badge-focus-width rgba($bg, .5);
    }
  }
}