i dont understand a nav what is this

Answer 1

The nav is used to create links to external pages of your site or sections of your page however the nav is intended to be used for your sites major navigation links that you have if you have multiple navs.

<nav>
<ul>
<li><a href="#">Home </a></li>
<li><a href="#">About </a></li>
<li><a href="#">Location </a></li>
</ul>
</nav>