<refentry xmlns="http://docbook.org/ns/docbook"
          xmlns:xlink="http://www.w3.org/1999/xlink"
          xmlns:xi="http://www.w3.org/2001/XInclude"
          xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
          xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
          version="5.0" xml:id="points.per.em">
<refmeta>
<refentrytitle>points.per.em</refentrytitle>
<refmiscinfo class="other" otherclass="datatype">number</refmiscinfo>
</refmeta>
<refnamediv>
<refname>points.per.em</refname>
<refpurpose>Specify the nominal size of an em-space in points</refpurpose>
</refnamediv>

<refsynopsisdiv>
<src:fragment xml:id="points.per.em.frag">
<xsl:param name="points.per.em">10</xsl:param>
</src:fragment>
</refsynopsisdiv>

<refsection><info><title>Description</title></info>

<para>The fixed value used for calculations based upon the size of a
character. The assumption made is that ten point font is in use. This
assumption may not be valid.</para>

</refsection>
</refentry>
