Hello!

I'm new to this forum so first I'd like to say hi to everyone! I have a problem bothering me, I'm not a professional web designer and have been given the task to make dropdown menus that are transparent between menu choices, here's an image to illustrate:



between menu options menu1 and menu2 for example the background picture can still be seen. How do I accomplish this? Any ideas or existing solutions will be highly appreciated! Thanks!