body{
background-color:#646464;
}


#box {
background:#404040;
position:absolute;
width: 960px;
height: 345px;
left: 50%;
top: 50%;
margin-left: -480px;
margin-top: -172.5px;
border-style: solid;
border-width:0px;
border-color: #000000;
z-index:10;
}