{% for label, messages in app.flashes %} {% for message in messages %} <div class="alert alert-card alert-{{ label }}" role="alert"> <strong class="text-capitalize">{{ label }}</strong> {{ message }} <button class="close" type="button" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button> </div> {% endfor %} {% endfor %}