A tutorial about creating simple accordion menu with support for sub level items by using CSS and jQuery.
j-accordion.js is a jQuery accordion plugin just like the one on the NVIDIA homepage. Hovered items expand automatically and other items stay collapsed. It can be use as a menu.
metisMenu is a jQuery menu plugin for Bootstrap 3. You can create collapsible menu with animated accordion effects and auto collapse support.
A tutorial about creating an accordion menu by using jQuery and CSS3.