discourse/plugins/discourse-calendar/assets/stylesheets/common/discourse-post-event-bulk-invite-modal.scss

.post-event-bulk-invite {
  .bulk-event-help {
    margin: 0 0 1em 0;
  }

  .bulk-invite-rows {
    margin-bottom: 1em;

    .group-selector {
      margin: 0;
    }
  }

  .bulk-invite-row {
    display: flex;
    padding: 0.25em 0;

    .bulk-invite-attendance {
      margin: 0 0.5em;

      .select-kit-header {
        height: 100%;
      }
    }

    .remove-bulk-invite {
      margin-left: auto;
    }
  }

  .bulk-invites {
    margin-bottom: 2em;

    .bulk-invite-actions {
      display: flex;

      .add-bulk-invite {
        margin-left: auto;
      }
    }
  }

  .csv-bulk-invites {
    .bulk-invite-actions {
      display: flex;

      > :last-child {
        margin-left: 0.5em;
      }
    }
  }
}