XML namespace
The reserved xml: namespace
Bound to the xml: prefix implicitly and permanently. Never declare it, never rebind it.
xmlns:xml="http://www.w3.org/XML/1998/namespace"The xml: prefix is bound to this URI by the XML specification itself. It needs no xmlns:xml declaration, and rebinding the prefix to any other URI is forbidden — a document that tries is not well-formed.
It supplies the four attributes every XML vocabulary can use: xml:lang, xml:space, xml:base and xml:id.
- URI
http://www.w3.org/XML/1998/namespace- Prefix
xml- Elements
- Contributes attributes only
Specification: Namespaces in XML 1.0
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