Summary
The Accordion control is used by Product Detail Tabs in Responsive mode.
Also, Accordion is used for Page Break (Slides) and Single Contact Layout in Joomla.
Usage
The Accordion control can be configured under the Styles:

Sample

The Accordion control is used by Product Detail Tabs in Responsive mode.
Also, Accordion is used for Page Break (Slides) and Single Contact Layout in Joomla.
The Accordion control can be configured under the Styles: