test.html

<!DOCTYPE html>
<html id="xo-test" lang="en" class="nsp-grid nsp-grid-3r theme-dark">

<head>
    <meta charset="utf-8" />
    <title>XO-JS - Flexible Vanilla JavaScript Form Generation</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />

    <link rel="stylesheet" href="css/xo-test.css" />

    <meta name="color-scheme" content="dark light" />

    <link rel="stylesheet" href="https://cdn.jsdelivr.net/themify-icons/0.1.2/css/themify-icons.css" />
    <link rel="shortcut icon" href="/favicon.ico" />
</head>

<body>
    <header data-pwa-area="header"></header>

    <main>
        <!-- <section data-pwa-area="menu" data-reset="none"></section> -->
        <section data-pwa-area="main" data-reset="route"></section>
    </main>

    <footer data-pwa-area="footer">&copy; 2021 Marc van Neerven</footer>

    <script type="module" src="/dist/xo.js"></script>

    <script type="module" src="/js/test/tester.js"></script>

</body>

</html>