discourse/app/assets/stylesheets/common/select-kit/dropdown-select-box.scss

.select-kit {
  &.dropdown-select-box {
    display: inline-flex;
    min-width: auto;
    border: none;

    &.is-expanded {
      .select-kit-collection,
      .select-kit-body {
        border-radius: 0;
      }
    }

    .select-kit-body {
      border: 1px solid $primary-low;
      background-clip: padding-box;
      box-shadow: shadow("dropdown");
    }

    .select-kit-row {
      margin: 0;

      .icons {
        display: flex;
        margin-right: 0.5em;

        .d-icon {
          font-size: $font-up-2;
          align-self: center;
          margin-right: 0;
        }
      }

      .texts {
        line-height: $line-height-medium;
        flex: 1 1 0%;
        align-items: flex-start;
        display: flex;
        flex-wrap: wrap;
        flex-direction: column;

        .name {
          flex: 1 1 auto;
          font-weight: bold;
          font-size: $font-0;
          color: $primary;
          padding: 0;
          @include ellipsis;
          max-width: 100%;
        }

        .desc {
          flex: 1 1 auto;
          font-size: $font-down-1;
          font-weight: normal;
          color: $primary-medium;
          white-space: normal;
          min-width: 350px;
        }
      }
    }

    .select-kit-collection {
      padding: 0;
      max-height: 100%;
    }

    .dropdown-select-box-header {
      box-sizing: border-box;
      border: 0;
      align-items: center;
      justify-content: space-between;
      flex-direction: row;
      display: inline-flex;

      .d-icon + .d-icon {
        margin-left: 0.25em;
      }

      &.is-focused {
        outline-style: auto;
        outline-color: $tertiary;
      }
    }
  }
}