_layouts/base.html

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
        <meta name="description" content="" />
        <meta name="author" content="" />
        <title>{% assign title_is_not_empty = page.title | is_not_empty %}{% if title_is_not_empty %}{{ page.title }} - {% endif %}{{ site.title }}</title>
        <!-- Favicon-->
        <link rel="icon" type="image/x-icon" href="assets/favicon.ico" />
        <!-- Bootstrap Icons-->
        <link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.4/font/bootstrap-icons.css" rel="stylesheet" />
        <!-- Google fonts-->
        <link href="https://fonts.googleapis.com/css?family=Merriweather+Sans:400,700" rel="stylesheet" />
        <link href="https://fonts.googleapis.com/css?family=Merriweather:400,300,300italic,400italic,700,700italic" rel="stylesheet" type="text/css" />
        <!-- SimpleLightbox plugin CSS-->
        <link href="https://cdnjs.cloudflare.com/ajax/libs/SimpleLightbox/2.1.0/simpleLightbox.min.css" rel="stylesheet" />
        <!-- Core theme CSS (includes Bootstrap)-->
        <link href="assets/css/styles.css" rel="stylesheet" />
        <!-- Custom CSS -->
        <link href="assets/css/main.css" rel="stylesheet">
{% seo %}
    </head>


    <body id="page-top" class="{% if page.layout == site.landing_template %}landing {% endif %}">
        {% include nav.html    section=section site=site page=page %}
        {{ content }}
        {% include footer.html section=section site=site page=page %}

        <!-- Bootstrap core JS-->
        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/js/bootstrap.bundle.min.js"></script>
        <!-- SimpleLightbox plugin JS-->
        <script src="https://cdnjs.cloudflare.com/ajax/libs/SimpleLightbox/2.1.0/simpleLightbox.min.js"></script>
        <!-- Core theme JS-->
        <script src="assets/js/scripts.min.js"></script>
        <!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *-->
        <!-- * *                               SB Forms JS                               * *-->
        <!-- * * Activate your form at https://startbootstrap.com/solution/contact-forms * *-->
        <!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *-->
        <!-- <script src="https://cdn.startbootstrap.com/sb-forms-latest.js"></script> -->
    </body>

</html>