See the below navigation examples currently used by Amazon, LightInTheBox and NewEgg. What's the pattern called? The content containing the subcategories would slide out when the mouse is hovering over anyone of the top categories in the sidebar menu.

Any template out there that could be used to achieve the effects? Or any CSS sample available to play with?

Amazon LightInTheBox NewEgg


1 Answer 1


They are called vertical mega-menus.

Here two articles of Jakob Nielsen about the this pattern :

Big, 2-dimensional drop-down panels group navigation options to eliminate scrolling and use typography, icons, and tooltips to explain users' choices.


Big 2-D drop-downs can facilitate site navigation - if they're properly designed. Two examples illustrate some mega-menu usability pitfalls.

Here an exemple of a CSS framework :


  • 2
    Vertical mega-menus in this case. Commented Jan 2, 2014 at 10:10
  • 1
    Yep, Vertical mega-menus to be more accurate answer.
    – tom
    Commented Jan 3, 2014 at 3:10
  • :-) You are right guys. Commented Jan 3, 2014 at 10:03

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