Create custom 404 page using base template

borgweb/borg/templates/404.html

@@ -0,0 +1,31 @@
+{% extends "borg/base.html" %}
+{% load static %}
+
+{% block title %}Not Found{% endblock %}
+
+{% block script %}
+{% endblock %}
+
+{% block style %}
+html, body {
+            height: 80%;
+        }
+
+        body {
+            display: flex;
+            align-items: center;
+            background-color: aliceblue;
+            text-align: center;
+        }
+{% endblock %}
+
+{% block body %}
+
+<div class="mx-auto w-25 px-5">
+    <div class="mx-5">
+    <h1 class="h1">Page not found!</h1>
+    </div>
+</div>
+
+{% endblock %}
+