Dropdown menu

Add a dropdown to the Big Red Dot exercise

If you're worried about messing with the previous exercise, please feel free to save as, and rename to "dropdown.html" or something else first.

Add a dropdown menu with the following sub-menus:

Under "mars expeditions" include:

  • Olympus Mons Climb
  • Tharsis Journey
  • Valles Marineris Expedition

Under "about us":

  • John Carter, CEO
  • Our People
  • Company History

Change the drop down so that it is style more like the rest of the page -- change the background color, borders, font, etc.