http://i.stack.imgur.com/pv7Ho.png


this is the menu im trying to build now im confused and cant figure out how to make it. one div (blue arrow) needs negative margin to get outside the box, another div for blue button background and inside the button two another divs or spans for the text colors. but on hover they need to look same (white color).
i've tried many times to build it but i failed. I get some bugs while loading.

btw. im working local so i cant give any link.
hope you understand me because my english is not good.

thank you all.