2.1. Custom CSS style sheet

The first configuration element css removes CSS style sheet named "Show info about included elements" from the Style menu.

The second one replaces the default CSS style sheet for DocBook (named "DocBook", see XXE_install_dir/addon/config/docbook/docbook.xxe) by a customized one.

  <!-- Discard this CSS -->
  <css name="Show info about included elements"/>

  <!-- Customize the normal CSS -->
  <css name="DocBook" location="mydocbook.css" />

The customized CSS style sheet imports the normal DocBook CSS style sheet using standard construct @import (but with special URI starting with "xxe-config:") and customizes the look and feel of DocBook element link.

@import url(xxe-config:docbook/css/docbook.css);

link:after {
    content: set-attribute-button(attribute, linkend,
                                  icon, icon(right));
    color: rgb(128,128,196);
}