HTML <html> tag
Definition and Usage
This element tells a browser that this is an HTML document.
Differences Between HTML and XHTML
The xmlns attribute is required in XHTML but not in HTML. However, the
validator on w3.org does not complain when this attribute is missing from the
<html> tag in an XHTML document. This is because "xmlns=http://www.w3.org/1999/xhtml"
is a fixed value and will be added to the <html> tag even if you do not include
it.
Example
|
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body>
...
...
...
</body>
</html>
|
Required Attributes
DTD indicates in which DTD the attribute is
allowed. S=Strict, T=Transitional, and F=Frameset.
| Attribute |
Value |
Description |
DTD |
| xmlns |
http://www.w3.org/1999/xhtml |
Defines the XML namespace attribute |
STF |
Standard Attributes
For a full description, go to Standard
Attributes.
Try-It-Yourself Demos
A very simple HTML
document
A very simple HTML document, with only a minimum of HTML tags. It demonstrates
how the text inside a body element is displayed in the browser.
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