{% for type, messagesByType in app.flashes %} {% for message in messagesByType %} <div class="alert alert-{{ type }} alert-dismissible fade show" role="alert"> {# filter |raw added to tell to Twig HTML content of the message is safe Else, it would transform tags to htmlspecialchars <strong> tags are visible #} {{ message|raw}} <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button> </div> {% endfor %}{% endfor %}