#header {
  position:absolute;
  left:50%;
  top:38px;
  margin-left:-488px;
  z-index:1;
  width:976px;
  height:92px;
  background:url(../images/header-bg.jpg) 0 0 no-repeat;
}

#header a {
  display:block;
  float:left;
  margin:12px 0 0 10px;
}