Adding open/closed icon to Twitter Bootstrap collapsibles (accordions)

Question

I\'ve set up this simple version of the Bootstrap accordion:

Simple accordion: http://jsfiddle.net/darrenc/cngPS/

Currently the icon only po

Answer 1

Here is a solution that creates a section that is expandable using somewhat material design, bootstrap 4.5/5 alpha and entirely non-javascript.

Style for head section

Body html

    

Expand Header

    CONTENT GOES IN HERE