[TYPO3-RTE] Add more as one CSS Class to an Link

[Christopher]

Hi Stefano,

having a look at the html-references it is possible to have several classes 
at one tag, but you must know that IE 6 and 7 do not respect them correctly: 
As far as I read they only use the last class, not taking into account that 
there were some others before.

That is why I always avoid having multiple clases, but use one clear 
classname, e.g. class="email" (for link without icon) or "email_with_icon" 
(for link with icon).

LG

Christopher