natronics.org/src/_layouts/page.liquid

<!DOCTYPE html>
<html lang="en">
  <head>
    {% include "html_head.liquid" %}
  </head>
  <body>
    {% include "header.liquid" %}
    
    <article id="main">
      <section>
        {{ page.content }}
      </section>
    </article >

    {% include "footer.liquid" %}
  </body>
</html>