added post to admin.py and fixed css

application/templates/base.html

@@ -6,7 +6,7 @@
         <meta charset="UTF-8">
         <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
         <title> {% block title %}Seitenname{% endblock %}</title>
-        <link href="{% static 'css/mysite.css' %}" rel="stylesheet">
+        <link href="{% static 'css/application.css' %}" rel="stylesheet">
         <link href="{% static 'bootstrap/css/bootstrap.css' %}" rel="stylesheet">
     </head>
 
@@ -76,8 +76,13 @@
             </div>
         </nav>
 
-        {% block content %} {% endblock %}
-
+        <div class="content container">
+            <div class="row">
+                <div class="col-md-8">
+                    {% block content %} {% endblock %}
+                </div>
+            </div>
+        </div>
         <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
         <script src="{% static 'bootstrap/js/bootstrap.bundle.js' %}"></script>
     </body>