Chatwoot/app/javascript/dashboard/assets/scss/plugins/_multiselect.scss

@mixin label-multiselect-hover {
  &::after {
    color: $color-primary-dark;
  }

  &:hover {
    background: $color-background;

    &::after {
      color: $color-woot;
    }
  }
}

.multiselect {
  margin-bottom: $space-normal;
  min-height: 38px;

  &.multiselect--active {
    >.multiselect__tags {
      border-color: $color-woot;
    }
  }

  .multiselect__select {
    min-height: 44px;
    padding: 0;
    right: 0;
    top: 0;

    &::before {
      right: 0;
      top: 60%;
    }
  }

  .multiselect__content .multiselect__option {
    font-size: $font-size-small;
    font-weight: $font-weight-normal;

    &.multiselect__option--highlight {
      font-weight: $font-weight-medium;
    }
  }
}

.multiselect>.multiselect__tags {
  @include margin(0);
  border: 1px solid $color-border;
  min-height: 44px;
  padding-top: $zero;

  .multiselect__tags-wrap {
    display: inline-block;
    line-height: 1;
    margin-top: $space-smaller;
  }

  .multiselect__placeholder {
    padding-top: $space-small;
  }

  .multiselect__tag {
    $vertical-space: $space-smaller + $space-micro;
    background: $color-background;
    color: $color-heading;
    margin-top: $space-smaller;
    padding: $vertical-space $space-medium $vertical-space $space-one;
  }

  .multiselect__tag-icon {
    @include label-multiselect-hover;
    line-height: $space-medium + $space-micro;
  }

  .multiselect__input {
    @include ghost-input;
    @include padding($zero);
    font-size: $font-size-small;

    margin-bottom: $zero;
  }

  .multiselect__single {
    @include padding($space-one);

    margin-bottom: 0;
  }
}

.sidebar-labels-wrap {

  &.has-edited,
  &:hover {
    .multiselect {
      cursor: pointer;
    }

    .multiselect>.multiselect__tags {
      border-color: $color-border;
    }

    .multiselect>.multiselect__select {
      visibility: visible;
    }
  }

  .multiselect {
    margin-top: $space-small;

    >.multiselect__select {
      visibility: hidden;
    }

    >.multiselect__tags {
      border-color: transparent;
    }

    &.multiselect--active>.multiselect__tags {
      border-color: $color-woot;
    }
  }
}