generic-poky/documentation/ref-manual/ref-manual-customization.xsl

<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">

  <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl" />

  <xsl:param name="html.stylesheet" select="'ref-style.css'" />
  <xsl:param name="chapter.autolabel" select="1" />
  <xsl:param name="appendix.autolabel" select="A" />
  <xsl:param name="section.autolabel" select="1" />
  <xsl:param name="section.label.includes.component.label" select="1" />

  <xsl:attribute-set name="normal.para.spacing">
    <xsl:attribute name="text-indent">
      <xsl:choose>
        <xsl:when test="self::para">2em</xsl:when>
        <xsl:otherwise>inherit</xsl:otherwise>
      </xsl:choose>
    </xsl:attribute>
  </xsl:attribute-set>

</xsl:stylesheet>