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<h1> - <h6>
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HTML <html> xmlns Attribute
Example
A simple XHTML document, with the minimum of required tags:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Title of the document</title>
</head>
<body>
The content of the document......
</body>
</html>
<head>
<title>Title of the document</title>
</head>
<body>
The content of the document......
</body>
</html>
Try it yourself »
Browser Support
The xmlns attribute is supported in all major browsers.
Definition and Usage
The xmlns attribute specifies the xml namespace for a document.
Note: The xmlns attribute is required in XHTML, but invalid in HTML!
However, the HTML validator at http://w3.org does not complain when the xmlns attribute is missing in an XHTML document. This is because the namespace "xmlns=http://www.w3.org/1999/xhtml" is default, and will be added to the <html> tag even if you do not include it.
Syntax
<html xmlns="http://www.w3.org/1999/xhtml">
Attribute Values
| Value | Description |
|---|---|
| http://www.w3.org/1999/xhtml | The namespace to use (for XHTML documents) |
HTML <html> tag
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Copyright 1999-2012 by Refsnes Data. All Rights Reserved.
Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2012 by Refsnes Data. All Rights Reserved.