What happens about the presence of the top-level element? - XSLT

What happens about the presence of the top-level element?

- The top-level elements don’t have any effect on the behaviour of XSLT elements.

- The functions that are defined with it also don’t have any affect in the document.

- The top-level elements are not permitted to be used by specifying the xsl:apply templates.

- XSLT process is provided to ignore the top-level elements and ignore some of it if an error occurs.

- XSLT top-element element doesn’t recognize the namespace URI and can be provided using other sources.