.content .tong-quan .accordion .card-header:after {
    font-family: 'FontAwesome';
    content: "\f139";
    float: right;
}

.content .tong-quan .accordion .card-header.collapsed:after {
    /* symbol for "collapsed" panels */
    content: "\f13a";
}

.content .tong-quan .accordion {
    padding-bottom: 60px;
    padding-top: 30px;
}

    .content .tong-quan .accordion .card {
    }

        .content .tong-quan .accordion .card .card-item {
            padding-bottom: 0px;
        }

            .content .tong-quan .accordion .card .card-item .card-header {
                background-color: #dbfbfc;
                padding: 10px;
            }

                .content .tong-quan .accordion .card .card-item .card-header a {
                    font-weight: bold;
                    color: #0391cc;
                }

            .content .tong-quan .accordion .card .card-item .card-body p {
                padding-bottom: 0px;
            }

            .content .tong-quan .accordion .card .card-item .card-body a:hover {
                text-decoration: none;
            }

            .content .tong-quan .accordion .card .card-item .card-body a p:after {
                content: '';
                background-image: url("../img/icon/icon-quanhecodong.png");
                display: inline-block;
                background-position: 0px 0px;
                width: 18px;
                height: 15px;
            }