Image layout using css

I would like to add some css code that will control how images appear in articles. I am just wondering how that can be achieved.

Hi,
You are asking about selectors or place where to put code ?

Hi,
You are asking about selectors or place where to put code ?

Hi Konrad, thanks for a quick reply. I am asking about where to put the code and how that code should look like (is that asking too much?:=))

Regards,

No problem, I have found a solution:=)

Ok. If you have more questions don't afraid to ask.