XML (Extensible Markup Language) is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards.

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href lang annotations in xml sitemap file displays issues

Following Google guidelines for creating an sitemap.xml file to add a href lang annotations, I'm getting display issue when viewing the sitemap.xml file in my browser. Instead of looking like a ...
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XML Schema for Cascading Stylesheet Expressions?

Considering that an XML schema - similar to an SGML or XML Document Type Definition or a Relax NG XML or Compact schema - that an XML schema defines a manner of a grammar for XML expressions, and in ...