This is an XML namespace defined in the XML Linking Language (XLink) specification. For more information about XML, please refer to The Extensible Markup Language (XML) 1.0 specification. For more information about XML namespaces, please refer to the Namespaces in XML specification. Webmaster Last
http://www.w3.org/2000/svg is an XML namespace, first defined in the Scalable Vector Graphics (SVG) 1.0 Specification and subsequently added to by SVG 1.1, SVG 1.2 and SVG 2. The SVG namespace ismutable ; names may be added over time by the W3C SVG Working Group by publication in W3C Technical ...