.center { text-align: center; }

#nav {
  background-color: transparent;
  background-image: url('../img/nav.png');
  background-repeat: no-repeat;
  background-attachment: scroll;
  background-position: center top;
  height: 32px;
}

#nav-low {
  background-color: transparent;
  background-image: url('../img/nav_low.png');
  background-repeat: no-repeat;
  background-attachment: scroll;
  background-position: center bottom;
  height: 32px;
}

.grad {
  background-color: transparent;
  background-image: url('../img/grad.png');
  background-repeat: repeat-y;
}