{{ form_start(form, {'attr': {'class': 'form-horizontal'}}) }}

<div class="container mt-5 mb-5 bg-light pt-3 pb-2 shadow p-4">

    <div class="form-group row">
        {{ form_label(form.name, 'Nom du sous-type', {'label_attr': {'class': 'col-sm-2 col-form-label'}}) }}
        <div class="col">
            {{ form_errors(form.name) }}
            {{ form_widget(form.name, {'attr': {'class': 'form-control'}}) }}
        </div>
    </div>

    <div class="form-group row">
        {{ form_label(form.description, 'Description', {'label_attr': {'class': 'col-sm-2 col-form-label'}}) }}
        <div class="col">
            {{ form_errors(form.description) }}
            {{ form_widget(form.description, {'attr': {'class': 'form-control '}}) }}
        </div>
    </div>

    <div class="form-group row">
        <div class="col-sm-10 offset-sm-2">
            <button type="submit" class="btn btn-danger">{{ button_label|default('Enregistrer') }}</button>
        </div>
    
</div>
{{ form_end(form) }}