Help needed with screeninfo and informaltable in docbook5

Good Morning!

 

I need your support again on two points where I am not getting further.

At the moment I converting the darktable documentation from docbook4 to docbook5

 

A first preliminary result can be seen here.

https://github.com/mepi0011/darktable/tree/docBook5_port/doc/usermanual

 

1.) In some xml-files I have a screenshot element with an screeninfo element.

For the docbook5 adaptation I changed this as follows, but I'm not sure if this is correct.

 

docbook4:

  <para>

    <screenshot>

      <screeninfo>The map view</screeninfo>

      <graphic fileref="images/map_view.png" scalefit="1" width="80%"></graphic>

    </screenshot>

  </para>

  

docbook5 apaption:

  <para>

    <screenshot>

      <info>

        <title>

            The map view

        </title>

      </info>

      <mediaobject>

        <imageobject>

            <imagedata fileref="images/map_view.png" scalefit="1" width="80%" />

        </imageobject>

      </mediaobject>

    </screenshot>

  </para>

  

2.) My second Problem is that emacs mark "width" in an informaltable as non valid. 

 

  <informaltable frame="none"  width="80%"> 

 

How do I change this to make it docbook5 compliant?

 

Thank you for your answers!

Pierre