No, sorry, that doesn't seem to help me either. But thanks for the tip, I might need it some other time.
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Found a solution for the extra height problem!
In the source code of the page a found this extra tag after the module insert:
<div style="height: 25px;"></div>
Looked thereafter in the mod_dm-t_1-0.php file in the modules dir and changed the following line:
$height = @$params->height ? strval( $params->height ) : "25";
to
$height = @$params->height ? strval( $params->height ) : "0";
Now I can specify the height in my css file.