custom css for displaying HTML emails ?

Hi there,

I sadly get some important HTML formatted emails, but they are displayed with a too small font.
Is there a way I can configure kmail (Version 4.14.10, openSuse 13.2)
to use either always a larger font for HTML mails only or to use a custom .css ?

The settings in appearance/fonts seem to only relate to non-html mails,
and changing the font with Ctrl+ changes then also the font size for non-html mails 
-- 
Best regards/Schöne Grüße

Martin
A: Because it breaks the logical sequence of discussion
Q: Why is top posting bad?

()  ascii ribbon campaign - against html e-mail 
/\                        - against proprietary attachments

Geschenkideen, Accessoires, Seifen, Kulinarisches: www.lillehus.at
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