Wildcard Matches
A wildcard match will select any element. A wildcard match rule is useful for designating a rule to apply if no other rule applies. (The XSL processor is actually required to assume a default rule when there is no specific rule, as you will learn later in this chapter.)
The syntax for a wildcard selection is
<xsl:template match="*">
You can also specify the following rule to match the whole of a document if you want to make absolutely sure you capture everything:
<xsl:template match="/ | *">