<style type="text/css">
body {
      margin: 0px;
}
        .overlay{
            display: none;
            position: absolute;
            top: 0%;
            left: 0%;
            width: 100%;
            height: 100%;
            background-color: black;
            z-index:1001;
            -moz-opacity: 0.8;
            opacity: .7;
            filter:alpha(opacity=70);           
        }
        .content {
            font-size: 13px; 
            font-weight: bold;
            display: none;
            position: absolute;
            top: 40%;
            left: 40%;
            width: 22em;
            height: 8em;
            padding: 16px;
            border: 4px solid #336699;
            background-color: white;
            z-index:1002;
            overflow: auto;
        }
</style>
