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

This is how I do it without any js.

I used the icon glyphicon-triangle-right but it works with any other icon, what it does is that it applies a 90 degrees rotation to the icon when the panel is open or not. I'm using Bootstrap 3.3.5 for this one.

CSS Code

h4.panel-title a {
    display: block;

}
h4.panel-title a.collapsed .glyphicon-triangle-right {
        color: #ada9a9 !important;
        transform: rotate(0deg);
}
h4.panel-title a .glyphicon-triangle-right {
        color: #515e64 !important;
        transform: rotate(90deg);
}

This is the HTML structure taken from the Bootstrap example

                            

                                

                                    

                                        
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