{{ form_start(form) }}

<div class="row">
    <div class="col-md-3">
        <h2>Employee settings</h2>
        {{ form_row(form.defaultEmployer) }}
        {{ form_row(form.perDiemRate) }}
    </div>
</div>
    {{ form_widget(form) }}
    <button class="btn btn-success">{{ button_label|default('Save') }}</button>
{{ form_end(form) }}