.upi_download_invoice_link
 {
    background-image: url(../images/upi_invoice.png) !important;
    background-repeat: no-repeat !important;
    background-position: center center !important;
    text-indent: -9999px;
    position: relative;
    padding: 0 !important;
    height: 26px !important;
    width: 26px;
}