body {
background:#eee;
}

#container { 
    display:table;
    position:absolute;
    top:0px; left:0px;
    width:100%; height:100%;

    -webkit-box-shadow: inset 0px 0px 1em 0px #aaa;
    -moz-box-shadow: inset 0px 0px 1em 0px #aaa;
    box-shadow: inset 0px 0px 1em 0px #aaa;
}

#response {
    display: table-cell;
    vertical-align: middle;
    text-align:center;
    font:bold 4em 'Arial',sans;
    color:#333;
    text-shadow: 0px 0px 1em #aaa;}