.geodir-single-reviews-container .commentlist .card-footer .report-this-review-inline a{
    position: relative;
    color: transparent !important;
}

.geodir-single-reviews-container .commentlist .card-footer .report-this-review-inline a::before{

    content: "";
    background-image: url(../images/report.png);
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    background-repeat: no-repeat;
    background-size: 16px;
    height: 20px;

}