discourse/app/assets/stylesheets/desktop/groups.scss

.groups-page {
  .list-controls {
    float: right;
  }
}

$filter-line-height: 1.5;

.groups-header-filters {
  .groups-header-filters-type {
    .select-kit-header {
      line-height: $filter-line-height;
    }
  }

  input {
    line-height: $filter-line-height;
  }
}