<section class="section">
    <div class="row">
        <div class="col-lg-6">
            <div class="card">
                <div class="card-body">
                    {{ form_start(form) }}
                    <div class="row mb-3">
                        <div class="col-sm-4">
                            {{ form_row(form.libelle, {'attr':{'class':'form-control'}}) }}
                        </div>
                        <div class="col-sm-4">
                            {{ form_row(form.date, {'attr':{'class':'form-control'}}) }}
                        </div>
                    </div>
                    {{ form_widget(form) }}
                </div>
            </div>
        </div>
    </div>
</section>
<button class="btn btn-success btn-sm">{{ button_label|default('Enregitrer') }}</button>
{{ form_end(form) }}