{% with messages = get_flashed_messages(category_filter=['error']) %}
    {% for message in messages %}
    <div class="alert alert-danger alert-dismissable">
        <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
        {{ message }}
    </div>
    {% endfor %}
{% endwith %}
{% with messages = get_flashed_messages(category_filter=['success']) %}
    {% for message in messages %}
    <div class="alert alert-success alert-dismissable">
        <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
        {{ message }}
    </div>
    {% endfor %}
{% endwith %}
{% with messages = get_flashed_messages(category_filter=['info']) %}
    {% for message in messages %}
    <div class="alert alert-info alert-dismissable">
        <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
        {{ message }}
    </div>
    {% endfor %}
{% endwith %}