.ui-dialog .ui-dialog-content {
    background: rgba(0, 0, 0, 0) none repeat scroll 0 0;
    border: 0 none;
    overflow: auto;
    padding: 0.5em 1em;
    position: relative;
    background-color: #fff;
    z-index: 2000;
}

.ui-widget-overlay
{
    background-color: black;
    background-image: none;
    opacity: 0.7;
    z-index: 10;
    left:0;
    position:fixed;
    top:0;
    width:100%;    
    height: 100%;
}

.ui-widget-content{
    z-index: 1500;
}