themes/velox/layouts/main.phtml

<!DOCTYPE html>
<html lang="zxx">
    <head>
        <?= View::partial('meta/metadata') ?>
        <?= View::partial('meta/stylesheets') ?>

        <?= View::yield('head') ?>
    </head>
    <body>
        <?= View::yield('body') ?>

        <header class="header">
            <?= View::partial('page/header') ?>
        </header>

        <main class="main">
            <?= View::yield(Config::get('view.defaultSectionName')) ?>
        </main>

        <footer class="footer">
            <?= View::partial('page/footer') ?>
        </footer>

        <?= stripos(Config::get('global.env'), 'PROD') === false
            ? HTML::div('Website is in development mode!', ['class' => 'has-background-warning p-2 has-text-centered'])
            : ''
        ?>

        <?= View::partial('meta/scripts') ?>
    </body>
</html>