div.div-center {
    max-width: 580px;
    max-height: 400px;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    z-index: 3000;
}

.font-login {
    font-size: 13px;
    font-family: Verdana;
    font-weight: bold;
}