{# Form theme : override blocks in default form theme : vendor/symfony/symfony/src/Symfony/Bridge/Twig/Resources/views/Form/form_div_layout.html.twig #}

{# Override block form_row #}
{%- block form_row -%}
    {{ form_widget(form, {'attr': {'class': 'form-control mb-3'} }) }}
    {{- form_errors(form) -}}
{%- endblock form_row -%}