XSLT Style Sheet Declaration
The following is a typical XSLT style sheet declaration.
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
The style sheet declaration is the <xsl:styesheet>
element. The attributes of this element must declare the version of XSLT, and must include at least one namespace declaration. For more information, see the xsl:stylesheet Element reference topic.