.gmd-voucher-button {
    background-color: #0073aa;
    color: #fff;
    padding: 8px 16px;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
}

.gmd-voucher-button:hover {
    background-color: #005f8d;
    color: #fff;
}