How to Apply the Same XSLT Template to Both XML Elements and Dynamically Created Elements?

I am working with XSLT 2.0 and trying to apply the same transformation process to both elements from the input XML and elements dynamically created within the XSLT.

Input XML:

<?xml version="1.0" encoding="UTF-8"?>
<document>
    <h2>General Introduction</h2>
    <h3>Project Overview</h3>
    <h3>Goals and Challenges</h3>
    <h2>Installation</h2>
    <h3>Initial Configuration</h3>
    <h4>Configuration File</h4>
    <h3>Deployment</h3>
    <h4>On a Local Server</h4>
    <h4>On a Remote Server</h4>
    <h2>Usage</h2>
    <h3>Basic Commands</h3>
    <h3>Advanced Options</h3>
</document>

XSLT

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="/document">
        <html>
            <body>
                <xsl:apply-templates/>
                <h3>Dynamic title (was not in the XML)</h3>
            </body>
        </html>
    </xsl:template>

    <xsl:template match="h2 | h3 | h4">
        <xsl:element name="{name()}">
            ¶<xsl:value-of select="."/>
        </xsl:element>
    </xsl:template>
</xsl:stylesheet>

Issue

The transformation correctly applies to <h2>, <h3>, and <h4> elements from the original XML. However, the dynamically created element:

<h3>Dynamic title (was not in the XML)</h3>

is not processed by the template that matches h2 | h3 | h4.

The question

How can I ensure that both XML elements and dynamically created elements undergo the same transformation process? Is there a way to reapply templates to generated elements within XSLT?

Solution

As an alternative to Martin's solution, which does two processing passes over the entire document, you could locally process the dynamic element like this:

     <xsl:template match="/document">
        <html>
            <body>
                <xsl:apply-templates/>
                <xsl:variable name="temp">
                   <h3>Dynamic title (was not in the XML)</h3>
                </xsl:variable>
                <xsl:apply-templates select="$temp"/>
            </body>
        </html>
    </xsl:template>