hippie/source/templates/demo/_default.njk

<!-- demo.default.template -->
{% extends "hippie/_default.njk" %}

{% block meta %}
	{% include "demo/partials/_meta.njk" %}
	<base href="/">
{% endblock %}

{% block links %}
	{{ super() }}
	<link rel="stylesheet" type="text/css" media="all" href="{{ pageBase }}css/demo.css"/>
	{# <link rel="stylesheet" type="text/css" media="all" href="css/demo.css"/> #}
	{# <link rel="stylesheet" type="text/css" media="all" href="{{ pageBase | subdir(2) }}css/demo.css"/> #}
{% endblock %}

{% block script %}
	{{ super() }}
	<script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
{% endblock %}