body{
width:100%;
text-align:center;
color:#000000;
margin:0px;
background:url(../image/back2.jpg);
}
img{
border:0;	
}
#table_one{

}
#table_two{
}
#table_three{
width:990px;
height:auto;
}
.heng{
background-image:url("../image/top.png");
}
.shu{
background-image:url("../image/left.png");
}