1<?xml version="1.0"?>
2<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
3  <xsl:output method="html"/>
4  <xsl:attribute-set name="foo-attribs">
5    <xsl:attribute name="size">+1</xsl:attribute>
6  </xsl:attribute-set>
7  <xsl:template match="foo">
8    <font xsl:use-attribute-sets="foo-attribs">
9foo
10    </font>
11  </xsl:template>
12</xsl:stylesheet>
13