Secciones y líneas generales de un documento HTML5

Ejemplo:

<section>

<h1>Forest elephants</h1>

<section>

<h1>Introduction</h1>

<p>In this section, we discuss the lesser known forest elephants.

</section>

<section>

<h1>Habitat</h1>

<p>Forest elephants do not live in trees but among them.

</section>

<aside>

<p>adevertising block

</aside>

</section>

<footer>

<p>©2010 The Example company

</footer>