div#waitMsg {
    display:none;
    text-align: center;
    position:fixed;
    top:0;
    left:0;
    z-index: 100;
    width: 100%;
    height: 100%;
    padding-top: 20%;
}

div#waitMsg > div {
    width: 400px; height: 150px; background-color: #ffffff; border: 1px solid #cccccc; margin: auto; padding-top: 20px
}

div#waitMsg > div > div {
    margin: 40px;
}