app/templates/flash.html

   1 {% with messages = get_flashed_messages() %}
   2 {% if messages %}
   3 <div class="container">
   4     {% for message in messages %}
   5     <div class="alert alert-info alert-dismissable">
   6         <a href="#" class="close" data-dismiss="alert" aria-label="close">×</a>
   7         {{ message }}
   8     </div>
   9     {% endfor %}
  10 </div>
  11 {% endif %}
  12 {% endwith %}