About HTML5 and HTML5 Browser Support

HTML was developed by the W3C until 2004, when members of the HTML working group grew disturbed with the direction the W3C was going with HTML. They felt that the W3C was not paying enough attention to the real-world development needs of the language and focusing too much on XML and XHTML. So they formed a new group called WHATWG (Web Hypertext Application Technology Working Group) devoted to evolving the Web. They started by working on a new specification of HTML - HTML5.
HTML5 is a new version of HTML 4.01 and XHTML 1.0 focusing on the needs of Web application developers as well as evolving HTML and addressing issues found in the current specifications.

What is HTML5?

HTML5 is a new specification of HTML designed to follow HTML 4.01 and was created by designers who were not satisfied with the direction the W3C was taking HTML with the advent of XHTML 1.0. HTML5 adds features to help web application developers and to improve the interoperability among web browsers and user agents.
There are lots of new features to HTML5 including:
  • Tags to help with the structure of your pages like section, article, and aside.
  • New form tags to get more specific data in your forms
  • Multimedia tags to assist you in adding video and audio to your web pages.
  • Plus, some tags have been removed from the specification.
You do this by using the correct doctype:
<!doctype html>
Building an HTML5 Page
Put the doctype as the first line in your HTML document. Then add the <html> tag and start the <head> of your document. Inside the head, you should indicate the title of your document and the character set:
<html>
  <head>
    <title>My First HTML5 Document</title>
    <meta charset="UTF-8">
  </head>
Write your HTML5 document with the same tags as you would an HTML 4.01 document. Put your content in the <body> tag and close both the body tag and the html tag at the very bottom of the document.
Here is a sample HTML5 document:
<!doctype html>
<html>
  <head>
    <title>My First HTML5 Document</title>
    <meta charset="UTF-8">
  </head>
  <body>
    <p>Put your HTML5 tags here</p>
  </body>
</html>

HTML5 Browser Support

HTML5 is currently a working draft at the W3C. Because it has not yet been approved as a formal specification, many web browser manufacturers either don’t support HTML5 or only support some of the tags. and even the geolocation API. Opera 10 only really supports the canvas tag reliably, but it doesn’t support audio or video. However it does have good support for web forms 2 and SVG support. And of course, Internet Explorer 8 doesn’t support HTML5 at all.

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