Add arrows in accordion functionality

[stefanhietel]

is it possible to add arrows (collapsed and expanded) in the accordion view?
Regards Stefan

[adambadun]

.panel-title > a[data-toggle=collapse].collapsed:after {
content: '\f078';
}

.panel-title > a[data-toggle=collapse]:after {
font-family: FontAwesome;
content: '\f077';
float: right;
margin-right: 10px;
}