discourse/app/assets/stylesheets/common/select-kit/period-chooser.scss

.select-kit {
  &.dropdown-select-box {
    &.period-chooser {
      display: inline-flex;
      position: relative;

      .select-kit-collection {
        padding: 5px;
      }

      .period-chooser-header {
        display: inline-block; // safari 14 has issues with summary elements and flexbox
        background: transparent;
        border-color: transparent;
        padding: 0;

        h2.selected-name {
          color: var(--secondary);
          display: inline-block;

          .date-section {
            color: var(--primary);
            margin-right: 5px;
          }

          .top-date-string {
            font-size: var(--font-down-1);
            color: var(--primary-med-or-secondary-high);
            font-weight: normal;
            text-transform: uppercase;
          }
        }

        .d-icon {
          color: var(--primary);
          opacity: 1;
          font-size: var(--font-up-3);
        }

        &.is-focused,
        &:focus,
        &:hover {
          background: transparent;
          border-color: transparent;
          outline: none;
        }
      }

      .period-chooser-row {
        font-weight: bold;
        padding: 5px;
        font-size: var(--font-up-1);
        align-items: center;
        display: flex;

        .period-title {
          flex: 1 0 0px;
        }

        .date-section {
          color: var(--primary);
        }

        .top-date-string {
          font-weight: normal;
          font-size: var(--font-down-1);
          color: var(--primary-med-or-secondary-high);
          text-transform: uppercase;
          margin-left: 5px;
        }
      }
    }
  }
}