The standard has been simplified because the previous doctypes were too cryptic. The new doctype is simply <!DOCTYPE html>
. You may wonder why it is not <!DOCTYPE html5>
but it is simply because it is just an update to the standard of HTML and not a new version of anything. As you can see below, all elements can now have a language attribute.
The
<html>
element is the root element of a document. Every document
must begin with this element, and it must contain both the<head>
and
<body>
elements.It is considered good practice to specify the primary language of the
document on this element using the lang attribute.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Hello World</title>
</head>
<body>
<h1>Hello World</h1>
<p>
Jamie was here.
</p>
</body>
</html>
More info: https://dev.w3.org/html5/html-author/#doctype-declaration