netbox-community-netbox/netbox/project-static/select.scss

$height: $input-height;
$white: $white;
$font-color: $input-color;
$font-placeholder-color: $input-placeholder-color;
$font-disabled-color: $form-select-disabled-color;
$primary-color: $primary;
$border-color: $form-select-border-color;
$search-highlight-color: $yellow;
$border-radius: $form-select-border-radius;
$spacing-l: $input-padding-x;
$spacing-m: $input-padding-x;
$spacing-s: $input-padding-x;

div.form-floating div.ss-main div.ss-single-selected,
div.form-floating div.ss-main div.ss-multi-selected {
  height: $form-floating-height;
}

@import './node_modules/slim-select/src/slim-select/slimselect.scss';

.ss-main {
  &.is-invalid .ss-single-selected,
  &.is-invalid .ss-multi-selected {
    border-color: $form-feedback-icon-invalid-color;
  }

  &.is-valid .ss-single-selected,
  &.is-valid .ss-multi-selected {
    border-color: $form-feedback-icon-valid-color;
  }

  .ss-single-selected,
  .ss-multi-selected {
    &[disabled] {
      color: $form-select-disabled-color;
      background-color: $form-select-disabled-bg;
      border-color: $form-select-disabled-border-color;
    }
  }

  .ss-single-selected {
    span.ss-arrow {
      // Inherit the arrow color from the parent (see color selector).
      span.arrow-down,
      span.arrow-up {
        border-color: currentColor;
      }
    }
    span.placeholder > *,
    span.placeholder {
      line-height: $input-line-height;
    }
  }

  .ss-multi-selected {
    align-items: center;
    padding-left: $input-padding-x;
    padding-right: $input-padding-x;

    .ss-values {
      padding-top: $spacer * 2 !important;
      .ss-disabled {
        padding: 4px 0px;
      }
    }
    .ss-add {
      margin: 0 0.75rem;
    }
  }

  .ss-content {
    .ss-list {
      .ss-option:last-child {
        border-bottom-left-radius: $form-select-border-radius;
        border-bottom-right-radius: $form-select-border-radius;
      }
    }
    border-bottom-left-radius: $form-select-border-radius;
    border-bottom-right-radius: $form-select-border-radius;
    .ss-search {
      input[type='search'] {
        border: $form-select-border-width solid $form-select-border-color;
        &:focus {
          border-color: $form-select-focus-border-color;
          outline: 0;
          @if $enable-shadows {
            @include box-shadow($form-select-box-shadow, $form-select-focus-box-shadow);
          } @else {
            // Avoid using mixin so we can pass custom focus shadow properly
            box-shadow: $form-select-focus-box-shadow;
          }
        }
      }
    }
  }
}