.black_overlay{
        display: none;
        position: absolute;
        top: 0%;
        left: 0%;
        width: 100%;
        height: 100%;
        background-color: black;
        z-index:1001;
        -moz-opacity: 0.8;
        opacity:.80;
        filter: alpha(opacity=80);
    }
    .white_content {
        display: none;
        position: fixed;
        top: 25%;
        left: 25%;
        width: 50%;
        height: 50%;
        padding: 16px;
        border: 16px solid orange;
        background-color: white;
        z-index:999999;
        overflow: auto;
    }