#lightbox .modal-content 
{
    display: inline-block;
    text-align: center;   
}

#lightbox .close 
{
    opacity: 1;
    color: #FFFFFF;
    background-color: #000000;
    padding: 5px 8px;
    border-radius: 5px;
    border: 2px solid #FFFFFF;
    position: absolute;
    top: 0px;
    right: -40px;   
    font-size: 9pt; 
    z-index: 9999;
}