Create a theme out of my page

templates/404.html

@@ -0,0 +1,11 @@
+{% extends "base.html" %}
+
+{% block content %}
+<navbar class="navbar level">
+  <div class="level-left">
+    <a href="{{ config.base_url }}">home</a>
+  </div>
+</navbar>
+<h1 class="title">404</h1>
+<h2 class="subtitle">Diese URL führt zu nichts!</h2>
+{% endblock content %}