Adding style attribute to authenticity_token

Hi all !
Whenever I call form_for a div with margin:0 and padding:0 is created.
Not only that is the default value in my application.css, I have no
chance to override this attribute. In my application I display a list
of items, using <ul> and <li>. Each li tag contains an form, which
should be displayed in one line (as inline element). But I can't set
the div to display:inline. Does anybody know how to solve my problem ?

Thank you very much in advance,
Christoph

Does nobody have any ideas ?