HTML and CSS Reference
<html> . . . </html>
This is the root element of HTML (and XHTML) documents, meaning all other elements are
contained within it. The html element has no ancestors. The opening <html> tag is placed at
beginning of the document, just after the document type declaration. The closing tag goes at
the end of the document. If the tags are omitted, html is still implied as the root element.
It is recommended that the language of the document be provided with the lang attribute.
As the root of the document
A head element followed by a body element
Optional/Optional; XHTML: Required/Required
HTML5 Global Attributes
Not in HTML 4.01 . Points to a cache used with the offline web application API.