html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    background: #ffffff;
}

#table {
    display: table;
    width: 100%;
    height: 100%;
    left: 0;
    overflow: hidden;
    z-index: 1;
    position: absolute;
}

#cell {
    vertical-align: middle;
    display: table-cell;
    position: static;
    *top:50%;/* hack para o IE6 e IE7 */
    *position:absolute;/* hack para o IE6 e IE7 */}

#container_game {
    top: -50%;
    height: 540px;
    width: 970px;
    margin: auto;
    position: relative;
}