What are the options for "Kissing you" in German?
Online translator gives the variant "das Küssen von Ihnen". Is it correct? Why "die Küsse" is in Dative here?

Question

Answer

That depends what you are trying to say:
1. (I'm) kissing you = (Ich) küsse dich
2. kissing you (adverbial) = dich küssend 
3. kissing you (noun) = das Küssen Deiner (archaic)
4. (The guy) kissing you = Der Kerl, der dich küsst.

BTW, "das Küssen" is the infinite used as a noun.

Answer

Es ist nicht richtig.
It's not correct.

küssen - ich küsse, du küsst, er/sie/es küsst, wir küssen, Ihr küsst, sie küssen

"Ich küsse dich." oder kurz "Küsse dich."

Answer

das Küssen ist ein subtiviertes Verb. 
z.B. das Schreiben (the writing), das Sprechen (the speaking) u.a 
:)

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