.panel-faq .panel-heading .accordion-toggle:after {
    content: url(up.png);
    float: right;
}
.panel-faq .panel-heading .accordion-toggle.collapsed:after {
    content: url(down.png);
}
.panel-faq .accordion-toggle {
	display: flex;
    justify-content: space-between;
    align-items: center;
}