<xsl:stylesheet>
The <xsl:stylesheet> element (or the equivalent <xsl:transform> element) is the outermost element of a stylesheet.
Namespace Declaration
A pseudo-attribute required to identify the document as an XSLT stylesheet. Typically this is xmlns:xsl="http://www.w3.org/1999/XSL/Transform".
Syntax
<xsl:stylesheet
  version="NUMBER"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  id="NAME"
  extension-element-prefixes="LIST-OF-NAMES"
  exclude-result-prefixes="LIST-OF-NAMES">
    ENTIRE STYLESHEET
</xsl:stylesheet>
Required Attributes
version- 
Specifies the version of XSLT required by this stylesheet.
 
Optional Attributes
exclude-result-prefixes- 
Specifies any namespace used in this document that should not be sent to the output document. The list is whitespace separated.
 extension-element-prefixes- 
Specifies a space-separated list of any namespace prefixes for extension elements in this document.
 default-collation- 
Specifies the default collation used by all XPath expressions appearing in attributes or text value templates that have the element as an ancestor, unless overridden by another
default-collationattribute on an inner element. It also determines the collation used by certain XSLT constructs (such as<xsl:key>and<xsl:for-each-group>) within its scope. default-mode- 
Defines the default value for the
modeattribute of all<xsl:template>and<xsl:apply-templates>elements within its scope. default-validation- 
Defines the default value of the
validationattribute of all relevant instructions appearing within its scope. expand-text- 
Determines whether descendant text nodes of the element are treated as text value templates.
 id- 
Specifies an
idfor this stylesheet. This is most often used when the stylesheet is embedded in another XML document. input-type-annotations- 
Specifies whether type annotations are stripped from the element so the same results are produced whether the source documents have been validated against a schema or not.
 use-when- 
Determines whether the element and all the nodes that have it as ancestor are excluded from the stylesheet.
 xpath-default-namespace- 
Specifies the namespace that will be used if the element name is unprefixed or an unprefixed type name within an XPath expression.
 
Type
Required outermost element of stylesheet.