css changes login page

application/auth/templates/login.html

@@ -9,10 +9,16 @@ Login
 <p>{{feedback}}</p>
 {% endif %}
 
-<form method="POST">
+<form class="bg-body-tertiary" method="POST">
     {{ form.hidden_tag() }}
-    {{ form.username.label }} {{ form.username() }}<br>
-    {{ form.password.label }} {{ form.password() }}<br>
-    {{ form.submit() }}
+    <div>
+        {{ form.username.label }} <br> {{ form.username() }}
+    </div>
+    <div>
+        {{ form.password.label }} <br> {{ form.password() }}
+    </div>
+    <div class="submit">
+        {{ form.submit() }}
+    </div>
 </form>
 {% endblock %}