.panel-heading.accordion-toggle:after {
    /* symbol for "opening" panels */
    font-family:'font-icons';
    /* essential for enabling glyphicon */
    content:"\e72d";
    /* adjust as needed, taken from bootstrap.css */
    float: right;
    position: relative;
    bottom: 23px;
    font-size: 12pt;
    /* adjust as needed */
    color: grey;
    /* adjust as needed */    
}
.panel-heading.accordion-toggle.collapsed:after {
    /* symbol for "collapsed" panels */
    content:"\e70b";
    /* adjust as needed, taken from bootstrap.css */
}

.panel-heading.accordion-toggle.collapsed{
    background-color: #FFF;
}

.panel-heading.accordion-toggle{
    background-color: #FFEB00;
}

.panel-heading:hover {
    cursor: pointer;
}
.panel-heading:hover h4 {
    text-decoration: underline;
}