.product-categories .cat-parent > i.toggle::before {
    font: normal normal normal 14px/1 FontAwesome;
    content: " \f0d7";
    cursor: pointer;
}

.product-categories .cat-parent > ul {
    display: none;
}

.product-categories .current-cat > a {
    font-weight: bold;
}


.product-categories .cat-parent.opened > i.toggle::before {
    content: " \f0d8";
}

.product-categories .cat-parent.opened > ul {
    display: block;
}