* {
    margin: 0;
    padding: 0;
}
body {
    background:url("../images/back_3d.jpg") no-repeat scroll top center transparent;
	overflow:hidden;
}
#game_object {
    background-color:red;
    height:;
    margin: 0px auto auto auto;
    position: relative;
    width:520PX;
}
#board div {
    background: url("../images/2507.png") no-repeat scroll 0 0 #ffffff;
    cursor: pointer;
    height: 175px;
    line-height: 175px;
    position: absolute;
    text-align: center;
    width: 175px;

    /* css3 shadow */
    -moz-box-shadow: inset 0 0 12px #555555;
    -webkit-box-shadow: inset 0 0 10px #555555;
    -ms-box-shadow: inset 0 0 12px #555555;
    -o-box-shadow: inset 0 0 12px #555555;
    box-shadow: inset 0 0 12px #555555;
}