how to make horizontal dropdown menu with many hierarchy /sub-sub?

how to make dropdown horizontal menu like in parkour generation web page but with sub-sub menu(when i hover the sub menu, ther is appear su开发者_运维百科b-sub menu with horizontal menu).

in park our, as you can see in classes -> outdoor, there is a sub sub menu but the menu is in vertical. what i need is in the horizontal.

my pleasure if any body knows the tutorial or article to make menu like i need. i have tried to search but i can't found it

many thanks :)

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this is for you

http://www.dynamicdrive.com/style/csslibrary/item/jquery_drop_line_tabs/

also see for more