Top 10 Premium CSS3 and HTML5 Mega Menus
Mega Dropdown Enhanced
This is a CSS3 dropdown menu with 6 columns grid layout. It comes with 7 premade color schemes, multi drop down levels, and content pre-styles. Is easy to use and install.
Website in a Navigation Bar
This is a nice designed mega menu with four different color schemes, pre-styled elements (list, heading, forms, etc.).
HTML5/CSS3 Drop Down Menu
This mega menu has two different color schemes (light & dark) and two different styles (square and rounded corners). It was built with semantic HTML 5 & CSS3 code and detailed documentation.