{% for message in app.flashes('error') %}
    <div class="shadow alert-danger font-weight-bold alert"><i class="fas fa-exclamation fa-2x mr-3"></i> {{ message }}</div>
{% endfor %}
 {% for message in app.flashes('info') %}
     <div class="shadow alert-success alert"><i class="fas fa-check fa-2x mr-3"></i> {{ message }}</div>
 {% endfor %}
{% for message in app.flashes('warning') %}
    <div class="shadow alert-warning alert"><i class="fas fa-exclamation-triangle fa-2x mr-3"></i>{{ message }}</div>
{% endfor %}