html,body{
width:100%;
height:100%;
margin:0;
background: url(bg.gif) center center #8b0000;
vertical-align:middle;
background-repeat: no-repeat;
}
#container{
position: absolute;
top: 50%;
left: 50%;
height: 500px;
width: 1003px;
margin: -250px 0 0 -495px;
}