Best Practices for Accordion Interfaces in Web Design (Jake Rocheleau)

The word “accordion” typically conjures a mental image of your favorite polka band. Although polka music can offer a rip-snorting good time, the term is associated with something different in the realm of web design. User interface accordions might refer to menus, widgets, or content areas which expand like the musical instrument. These interfaces have grown a lot more popular in recent years with the expansion of JavaScript and more prominently jQuery. (webdesignledger.com)