#modalDialog {
    display: none;
}
.ModalBackground {
    z-index: 500;
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    filter: alpha(opacity=40);
    -moz-opacity: 0.4;
    opacity: 0.4;
    background-color: gray;
}
.ModalContainer {
    z-index: 750;
    position: absolute;
    width: 400px;
    left: 50%;
    top: 50%;
}
.ModalMessageBox {
    z-index: 1000;
    position: relative;
    top: -200px;
    left: -200px;
    width: 400px;
    height: 150px;
    padding: 10px;
    background-color: white;
    border: solid 4px #ddddd2;
    text-align: center;
}
.ModalText {
    font-weight: bold;
}

/* ModalPopupExtender Classes */
.ModalPopupBackground {
    filter: alpha(opacity=40);
    -moz-opacity: 0.4;
    opacity: 0.4;
    -khtml-opacity: 0.5;
    background-color: gray;
}
.ModalPopupPanel {
    background-color: white;
    background-position: center;
    padding: 20px;
    border: solid 4px #ddddd2;
    text-align: center;
    width: 500px;
}