Style/Sections 
<style>Defines style information for a document
<div>Defines a section in a document
<span>Defines a section in a document
<header>NewDefines a header for a document or section
<footer>NewDefines a footer for a document or section
<hgroup>NewGroups heading (<h1> to <h6>) elements
<section>NewDefines a section in a document
<article>NewDefines an article
<aside>NewDefines content aside from the page content
<details>NewDefines additional details that the user can view or hide
<dialog>NewDefines a dialog box or window
<summary>NewDefines a visible heading for a <details> element