lfs-book-zh_CN/stylesheets/lfs-xsl/docbook-xsl-1.78.1/params/callout.defaultcolumn.xml

<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="callout.defaultcolumn">
<refmeta>
<refentrytitle>callout.defaultcolumn</refentrytitle>
<refmiscinfo class="other" otherclass="datatype">integer</refmiscinfo>
</refmeta>
<refnamediv>
<refname>callout.defaultcolumn</refname>
<refpurpose>Indicates what column callouts appear in by default</refpurpose>
</refnamediv>

<refsynopsisdiv>
<src:fragment xml:id="callout.defaultcolumn.frag">
<xsl:param name="callout.defaultcolumn">60</xsl:param>
</src:fragment>
</refsynopsisdiv>

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

<para>If a callout does not identify a column (for example, if it uses
the <literal>linerange</literal> <tag class="attribute">unit</tag>),
it will appear in the default column.
</para>

</refsection>
</refentry>