<header style="border: 2px black solid;">This is header</header>
<nav style="border: 2px black solid;">This is nav</nav>
<section style="border: 2px black solid;">This is section</section>
<article style="border: 2px black solid;">This is article</article>
<aside style="border: 2px black solid;">This is aside</aside>
<footer style="border: 2px black solid;">This is footer</footer>
<div style="border: 2px black solid;">This is div</div>