Q:

css drop down menu disappears behind content

On this page http://www.futureworkinstitute.com/2013/ I'm using the drop down menu from here http://www.kriesi.at/archives/create-a-multilevel-dropdown-menu-with-css-and-improve-it-via-jquery/ but as you can see, the menu disappears as soon as it leaves the #navbar div.

A:

The problem is you have overflow set to hidden on your navbar:
#navbar {
    ...
    overflow: hidden; //remove this line
    ...
}

