Modify CSS of joomla template to support drop down menu

We have a joomla template that does not support drop down menus. We need you to modify the css so that it does while still looking the same. We would like a suckerfish or like dropdown menu. (with drop downs having partial transparency,etc..) ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). ## Platform Firefox, IE7, IE8