.main {
 background-image: url(images/gracia_48.jpg);
 background-repeat: repeat;
 background-position: center center;
}
.stat {
 background-image: url(images/gracia_14.gif);
 background-repeat: no-repeat;
 background-position: center center;
}
.powered {
 background-image: url(images/gracia_54.jpg);
 background-repeat: no-repeat;
 background-position: center center;
}