Customizable dropdown menus?

I am trying to find software that can easily generate customizable
dropdown menus. Something that could generate a menu similar to the
one on this page: http://waltoncollege.uark.edu. My problem is that
every different software package I have downloaded will not let me
customize 100% of a menu's attributes. I end up stuck with something
that I can't customize or some dorky built in design with arrows,
weird borders, bullet points, underlines, etc. Can anyone help direct
me to software that can assist me in generating a menu like the U Ark
page? Thank you!