Demo: https://john-doe.neocities.org/

A website in a single HTML file. It simply uses the #anchor suffix and the :target CSS selector to show and hide pages/content.

To create a new page, add a <section> with a unique id:

<section id="contact">
   Contact me!
</section>

Then you could add a link to it inside <nav>:

<a href="#contact">Contact</a>