scripts/apps/users/activity-widget/configuration.html
<div ng-controller="ActivityConfigController" class="widget-config">
<form>
<fieldset>
<div class="form__group form__group--inline-label sd-margin-t--1 sd-margin-b--0">
<div class="form__item form__item--auto-width">
<div class="sd-input sd-input--is-select">
<label class="sd-input__label" for="" translate>Number of items</label>
<select ng-model="configuration.maxItems" class="sd-input__select">
<option value="5">5</option>
<option value="10">10</option>
<option value="25">25</option>
<option value="50">50</option>
</select>
</div>
</div>
</div>
</fieldset>
</form>
</div>