.black_overlay{
display: none;
position: absolute;
top: 0%;
left: 0%;
width: 100%;
height: 100%;
background-color: black;
z-index:100001;
-moz-opacity: 0.7;
opacity:.70;
filter: alpha(opacity=70);
}
  
.white_content {
display: none;
position: absolute;
top: 40%;
left: 35%;
width: 30%;
height: 20%;
padding: 16px;
border: 5px solid #000000;
background-color: white;
z-index:100002;
}