Match look'n'feel by including the base css file.

 - Legacy-Id: 489

Author: fenner

ietf/templates/announcements/announcement_detail.html

@@ -1,10 +1,12 @@
 {% extends "base.html" %}
 {% load ietf_filters %}
 
+{% block head %}<link rel="stylesheet" type="text/css" href="https://www1.ietf.org/css/base.css" /><{% endblock %}
+
 {% block title %}NomCom Message{% endblock %}
 
 {% block content %}
-<h1>NomCom Message</h1>
+<h2 style="text-align: center;">NomCom Message</h2>
 <p>
 From: {{ object.from_name|escape }}<br>
 To: {{ object.announced_to|escape }}<br>