{{ form_start(form, {'method': 'POST' }) }} <div class="input-group float-left"> {{ form_widget(form.email, {'attr': {'placeholder': 'footer.social.newsletter.adresse_email'|trans({},'app') |raw }}) }} <span class="input-group-btn"><button class="btn btn-default" type="button" id="btnewsletter">{{ 'footer.social.newsletter.submit' |trans({},'app') |raw }}</button></span> </div>{{ form_end(form) }}