openfoodnetwork/app/webpacker/css/admin_v3/components/tom_select.scss

@mixin hide-input {
  // Pretend there's no text input (it can't be hidden entirely, in order for tom-select to work)
  cursor: pointer;
  caret-color: transparent;
}

.ts-wrapper.single,
.ts-wrapper.multi {
  min-height: 40px;

  &.input-active {
    .ts-control {
      border-color: $orient;
      background-color: $lighter-grey;

      input {
        &::placeholder {
          color: $light-grey;
        }
      }
    }
  }

  .ts-control {
    box-shadow: none;
    border-color: $lighter-grey;
    background-color: $lighter-grey;
    background-image: none;
    @include border-radius($border-radius);

    input {
      font-size: $body-font-size;
      height: auto;

      &::placeholder {
        color: $near-black;
      }
    }

    .item {
      margin-top: 2px; // Ensure it lines up with the input. I have no idea why it's necessary.
    }
  }

  .ts-dropdown {
    margin-top: 4px;
    color: $near-black;
    @include border-radius($border-radius);
    border: none;
    box-shadow: $shadow-dropdown;

    .ts-dropdown-content {
      padding: $border-radius 0;
    }

    .option {
      padding: 8px;
      border-left: 3px solid transparent;
      line-height: 20px;

      &.selected,
      &.active {
        border-left: 3px solid $orient;
        background-color: $lighter-grey;
        color: $near-black;
      }
    }
  }
}

.plugin-dropdown_input .dropdown-input {
  border-color: $lighter-grey;

  &:focus {
    border-color: $orient;
  }
}

// For the "single" tom_select, be as close as possible to native select boxes
// without too many options
.ts-wrapper.single {
  max-height: 40px;
  max-width: 100%;

  &.has-items {
    @include hide-input;
  }

  .ts-control {
    padding: 0.5rem 0.75rem;
    padding-right: 1rem !important; // ts has a clever variable-based rule here, but it doesn't seem to work right.
    overflow: hidden;

    // Icon: Override TS icon with icon-chevron-down
    &::after {
      content: "\f078";
      font-family: FontAwesome;
      border: none;
      top: 1em;
    }
    &:not(.rtl)::after {
      right: 1.5rem;
    }

    .item {
      margin-right: 1rem;
      // Hide overflow with an ellipsis if a width has been set
      overflow: hidden;
      text-overflow: ellipsis;
      text-wrap: nowrap;
    }
  }

  &.dropdown-active .ts-control {
    &::after {
      content: "\f077"; // chevron-up
    }
  }
}

// 'no-input' mode, like a native select (hide text input).
.ts-wrapper.single.no-input {
  &.input-active .ts-control {
    @include hide-input;
  }

  .ts-dropdown {
    position: absolute;
    top: 0; // we don't need to see the currently selected option, because it's visible in the dropdown
    margin-top: 0;
  }
}