The xmlns attribute specifies the xml namespace for a document. Note: The xmlns attribute is required in XHTML, invalid in HTML 4.01, and optional in HTML5.
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Missing: att_html_xmlns. | Show results with:att_html_xmlns.
Definition and Usage. The <html> tag represents the root of an HTML document. The <html> tag is the container for all other HTML elements (except for the <!
Missing: att_html_xmlns. | Show results with:att_html_xmlns.
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 ...
Jun 25, 2015 · 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 " ...
Jun 17, 2017 · From https://www.w3schools.com/tags/att_html_xmlns.asp. The xmlns attribute specifies the xml namespace for a document.
Definition and Usage ... The xmlns attribute specifies the xml namespace for a document. Note: The xmlns attribute is required in XHTML, invalid in HTML 4.01, and ...
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, ...
Missing: att_html_xmlns. | Show results with:att_html_xmlns.
Jan 12, 2017 · Comment by gvdhoorn on 2017-01-12: This is basically the answer. xmlns is short for "XML NameSpace", and is a special XML construct that is ...
Oct 24, 2011 · http://www.w3schools.com/tags/att_html_xmlns.asp. [Edit]. Web Browser,. can't find the server at schemas.openxmlformats.org. Check the address ...