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HTML html xmlns Attribute

Definition and Usage

The xmlns attribute specifies the xml namespace for the document.
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.

Syntax

<html xmlns="http://www.w3.org/1999/xhtml">


Support

W3C: The "W3C" column indicates whether or not the attribute is defined in the W3C HTML/XHTML recommendation.

Internet Explorer Firefox Opera Safari W3C
YES YES YES YES XHTML only


Example

<html xmlns="http://www.w3.org/1999/xhtml">
</html>
HTML html xmlns Attribute Reviewed by 1000sourcecodes on 04:52 Rating: 5
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