style login and logout after other pages

code/templates/authenticate.html

@@ -1,8 +1,14 @@
 {% extends "layout.html" %}
 {% block body %}
+<div id=index_menu>
   authenticate to {{ name|safe  }}
-  <form action={{ url_for('authenticate',name=name) }} method=post enctype=multipart/form-data>
+  <div id=index_enter>
+    <form action={{ url_for('authenticate',name=name) }} method=post enctype=multipart/form-data>
      <p><input type=password name=password autofocus>
-       <input type=submit value=Login>
+     <input type=submit value=Login>
   </form>
+  </div>
+</div>
+
+
 {% endblock %}