In this post I will show you how to transform a Bootstrap Collapse Panel to Accordion Menu, implement a Bootstrap Collapse Panel with icon and also on how to create a Bootstrap Accordion Expand/Collapse All (open / close all) to control all the collapse panels.
Creating Bootstrap AccordionFirst of all Bootstrap JS Collapse plugin allows you to manage a large content on your pages by putting into collapse panel with toggle between hiding and showing content.
Bootstrap Collapse Panel With Icon
Bootstrap Accordion Menu
Bootstrap Accordion Expand/Collapse All
See the Pen Bootstrap Accordion example with expand/collapse all by Andreas Eracleous (@Sp00ky) on CodePen.