<section>

<section>

<section>
  <h1>WWF</h1>
  <p>The World Wide Fund for Nature (WWF) is....</p>
</section>

Defines a section in a document.

According to W3C's HTML5 documentation: "A section is a thematic grouping of content, typically with a heading.".

<section> — Structure map

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<section> — Related pages: