.md-model-bg{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #000;
    opacity: 0.8;
    filter: alpha(opacity=80);
    z-index: 9999;
}

.md-model-window{
    position: absolute;
    top: 20px;
    left: 50%;
    margin: 50px 0 0 -450px;
    padding: 10px 15px 15px 15px;
    width: 900px;
    background-color: #fff;
    color:#000;
    z-index: 10000;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    -khtml-border-radius: 5px;
    border-radius: 5px;
    min-height: 100px;
}