form validation

app/templates/base.html

@@ -19,6 +19,7 @@
             {% for message in messages %}
             <li>{{ message }}</li>
             {% endfor %}
+        </ul>
         {% endif %}
         {% endwith %}
         {% block content %}{% endblock %}

app/templates/login.html

@@ -7,10 +7,16 @@
         <p>
             {{ form.username.label }}<br>
             {{ form.username(size=32) }}
+            { for error in form.username.errors %}
+            <span style="color: red;">[{{ error }}]</span>
+            {% endfor %}
         </p>
         <p>
             {{ form.password.label }}<br>
             {{ form.password(size=32) }}
+            {% for error in form.password.errors %}
+            <span style="color: red;">[{{ error }}]</span>
+            {% endfor %}
         </p>
         <p>{{ form.remember_me() }} {{ form.remember_me.label }}</p>
         <p>{{ form.submit() }} </p>