Document Formatting (XSL)
General Structure <?xml-stylesheet href=“article.stl” type=“text/xsl”?> <!DOCTYPE article ………> <article> … </article>
Each style sheet has a root element called xsl. It may contain any combination of Rule and Stylerule elements.
<xsl> <rule>…</rule><rule>…</rule><stylerule>…</stylerule> </xsl>