.boxHolder
{
   text-align: center;
   z-index: 1000;
}

.black_overlay
{
   display: none;
   position: fixed;
   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: 50%;
   width: 750px;
   height: 50%;
   padding: 1em;
   border: 1em solid #666;
   background-color: white;
   z-index:1002;
   overflow: auto;
   margin-left: -400px;
   text-align: left;
}

body
{
   margin-top:0px;
   margin-bottom:0px;
   margin-left:0px;
   margin-right:0px;
}