HTML5 Html Tag | HTML5 Code

The <html> tag tells the browser that this is an HTML document.

Supported In HTML4: Yes

Supported In HTML5: Yes

HTML4 vs HTML5 Differences: HTML 5 has a new attribute: manifest

Title	Values	Description	HTML4 Support	HTML5 Support
manifest	url	Defines an URL, at this URL the document's cache information is being described.	No	Yes
xmlns	http://www.w3.org/1999/xhtml	Defines the XML namespace attribute.	No	No

All standard attributes are supported.

<html> Tag