<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    {% load static %}
    <link rel="stylesheet" type="text/css" href="{% static 'css/bootstrap.min.css' %}">
    <script src="{% static 'js/jquery-3.4.1.min.js' %}"></script>
    <script src="{% static 'js/bootstrap.min.js' %}"></script>
</head>
<body style="height: 500px">
<div class="d-flex justify-content-center align-items-center w-100 h-100">
<h1 class="mx-auto text-center">500</h1>
</div>
</body>
</html>