Single menu item

Hi there,
I just wanted to ask, if every single menu-item in the mainmenu of this template is accessible via css. If so, which css-file do i have to edit (menu.css, menu.gkmenu.css, template.css???)?
I tried to reach a single menu-item via itemid, but it didn´t work.
I tried the following code:

Code: Select all

#gkMainMenu > div > ul > li.item102:hover {
                            background: url('envir.png') 0 0 no-repeat; }

id 102 is the unique id of the menu-item.
best regards

To get any html element by id you need to use '#' instead of '.' like #item102

thanks for your answer.
I tried your way, but it didn´t work. so how can I concretley adress the menu-item with the ID 102 on this template in the main menu. I want to give it a certain image on instead of the text, and another one on hover and active?
thanks in advance,
stefan