Twiiter Bootstrap (button Dropdown) + Div Fixed

I have two buttons in a div with position: fixed; but when you click, the list of options disappeared. I wrote my code in the link below, you can help me? http://jsfiddle.net/T9QHw

Solution 1:

The list of options disappear, because you're telling the div to hide everything that goes beyond the div itself using overflow:hidden. Clearly, the dropdown menu is outside of the div.

Remove overflow:hidden and it will work.