I want something like Firebug for Prince!

Right now I'm trying to find out which rules cause the space after headings in my output. This is the HTML:

<div class="section" lang="en">
  <div class="titlepage">
    <div>
      <div>
        <h5 class="title">1.3.1.1.&nbsp;...</h5>
      </div>
    </div>
  </div>

  <div class="variablelist">
    <dl>
    ...

(Yes, ugly I know.)

I want to reduce the space after the heading. This has no effect:

div.section div.titlepage { margin: 0em; padding: 0em; background: red; }

Try

h5 {margin-bottom:0}

Sometimes it is useful to look in default style sheet used by Prince to format XHTML. That is /Engine/style/xhtml.css

I would also like to have an intermediate html version so I could use firebug on it to troubleshoot. Anyone know how to achieve this?