Seeking pure CSS drop-down multi-level menu for ME IE 7+

No JS, please, just pure CSS. Horizontal, drop down, with sub-menus beyond that

item 1    item 2    item 3    item 4

hover item 2

item 1    item 2    item 3    item 4
          option 1
          option 2
          option 3

I want to hover over option 2 and get

item 1    item 2    item 3    item 4
          option 1
          option 2  choice 1
          option 3  choice 2
                    choice 3
开发者_C百科

Must work in MS IE 7+ (other browser a bonus, probably a given). Thanks

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Check out http://www.cssplay.co.uk/menus/final_drop.html

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Ive used Project7.coms css library/technique fairly successfully. An example of its application can be found on my small company's website (I apologize for using/ plugging my own site) but it is the only time I've used this library.