lfs-book/stylesheets/lfs-xsl/docbook-xsl-1.78.1/params/default.table.rules.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="default.table.rules">
<refmeta>
<refentrytitle>default.table.rules</refentrytitle>
<refmiscinfo class="other" otherclass="datatype">string</refmiscinfo>
</refmeta>
<refnamediv>
<refname>default.table.rules</refname>
<refpurpose>The default column and row rules for tables using HTML markup</refpurpose>
</refnamediv>

<refsynopsisdiv>
<src:fragment xml:id="default.table.rules.frag">
<xsl:param name="default.table.rules">none</xsl:param>
</src:fragment>
</refsynopsisdiv>

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

<para>Tables using HTML markup elements can use an attribute
named <tag class="attribute">rules</tag> on the <tag>table</tag> or
<tag>informaltable</tag> element
to specify whether column and row border rules should be 
displayed. This parameter lets you specify a global default
style for all HTML tables that don't otherwise have
that attribute.</para>
<para>These are the supported values:</para>

<variablelist>
<varlistentry><term>all</term>
<listitem>
<para>Rules will appear between all rows and columns.</para>
</listitem>
</varlistentry>

<varlistentry><term>rows</term>
<listitem>
<para>Rules will appear between rows only.</para>
</listitem>
</varlistentry>

<varlistentry><term>cols</term>
<listitem>
<para>Rules will appear between columns only.</para>
</listitem>
</varlistentry>

<varlistentry><term>groups</term>
<listitem>
<para>Rules will appear between row groups (thead, tfoot, tbody).
No support for rules between column groups yet.
</para>
</listitem>
</varlistentry>

<varlistentry><term>none</term>
<listitem>
<para>No rules.  This is the default value.
</para>
</listitem>
</varlistentry>

</variablelist>

<para>The border after the last row and the border after
the last column are not affected by
this setting. Those borders are controlled by
the <tag class="attribute">frame</tag> attribute on the table element.
</para>

</refsection>
</refentry>