I generate xhtml but validator (http://validator.w3.org/check)give me error "document type does not allow element "li" here; missing one of "ul", "ol" start-tag"Code is:\[code\]<xsl:template match="/"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Catalogue</title> </head> <body> <h1>Producers</h1> <div style="margin:1em;background-color:lightgray;padding:0.5em"> <strong>Quick links to producers</strong> <xsl:call-template name="producer" /> </div> <xsl:apply-templates select="//producer[@id]" /> <h1>Products</h1> <xsl:apply-templates select="//product[@id]" /> </body> </html> </xsl:template> <xsl:template name="producer"> <xsl:for-each select="//producer[@id]"> <li> <a href="http://stackoverflow.com/questions/15813997/#{@id}"> <b> <xsl:value-of select="name"/> </b> <xsl:text> (</xsl:text><xsl:value-of select="@id"/><xsl:text>) </xsl:text> </a> </li> </xsl:for-each> </xsl:template> <xsl:template match="producer[@id]"> <a name="{@id}"/> <div style="border: thin solid gray;margin:1em;padding:0.5em;"> <h2> <xsl:value-of select="name"/> </h2> <xsl:text> <xsl:value-of select="description"/> </xsl:text> <xsl:apply-templates select="//producer[@id=current()/@id]/products"/> </div> </xsl:template>\[/code\]Any idea how generate valid xhtml?Thanks.