html, body {
    margin: 0;
    padding: 0;
    height:100%;
}
body {
    background: #fff url(images/tiled-background.png) repeat-x;
}
#wrapper {
    position: absolute;
    width: 960px;
    height: 720px;
    top: 50%;
    left: 50%;
    margin-top: -360px;
    margin-left:-480px;
    -webkit-box-shadow:  0px 0px 10px #000;
    box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.5);
 filter:progid:DXImageTransform.Microsoft.Glow(Color=Silver, Strength=15);
}