The world of CSS

This menu is very similar to the navigation devaysov from Apple. When you point to the appropriate section of the menu icons go smoothly from the top. Creating an effect of "mixing maps"
Demos and the author's article on the blog

See also:

• Overlapping buttons
• Menus with unlimited number of submenus
• Spinning sliding menu
• Pull-out form in the menu
• Slide-in Menu