Hi Imar and all!
Well, it helped and thank u for that.
I raised this question, because i thought on a scenario where you could have 10 menu items, that you try to squeeze in 844px width area, and 2 of the items could have long names, which can lead to "collisions" between the items if each of them will have an equal width., in oppose to the case in the book, where only 4 items are described (at least @ chapter 7).
So, I began searching methods to set each item's width separately, and the only thing came to my mind is that some how I need to set the ul and li HTML elements that used to render the menu, but I'm not sure if it's possible.
Your reply helped Imar, but I still wonder, if it's possible, and if it is not too much digging, I'll be happy to hear your opinion about it, or someone else's opinion.