HTML5

• <header>

  <header>

  Typically used at the top of the page as a container for the site or page title, navigation menus and other introductory content.

• <nav>

  <nav>

  Used as a container to wrap any type of navigational element on the page, like a main menu or a breadcrumb trail.

• <section>

  <section>

  This can be used as a wrapper to surround blocks of content that are similar in nature on the same page.

• <article>

  <article>

  Used as a wrapper for large blocks of content, such as a news article, a blog post, or a primary media element.

• <aside>

  <aside>

  Asides can be used to signify pullquotes within an article, or as a wrapper for sidebar content.

• <footer>

  <footer>

  Used as a container for footer related items, such as non-primary navigational menus, legal information, or at the end of an article to wrap meta information.

• <hgroup>

  <hgroup>

  Used to group multiple heading tags together. This is useful when using an H1 the site title and an H2 for the site tagline.

• <time>

  <time>

  Used to denote specific blocks of date and time related text on a page.

• <details>

  <details>

  Allows you to create expanding and collapsing content areas when used in combination with the SUMMARY element.

• <figure>

  <figure>

  Used to wrap images, video, or other block content that requires a caption.

• <mark>

  <mark>

  Allows you to mark up specific words on a page and make them stand out, highlighted in yellow for example.

• <ruby>

  <ruby>

  Allows for writing Asian language text in multiple writing systems.

The following elements have been removed from the HTML5 spec.

• <applet>
• <big>
• <blink>
• <center>
• <font>
• <marquee>