#centerAdBox .adItem {
  display: none;
  position: fixed;
  width: 509px;
  height: 350px;
  top: 50%;
  margin-top: -175px;
  left: 50%;
  margin-left: -254px;
  z-index: 9;
}
#centerAdBox .adItem a.closeAdBtn {
  position: absolute;
  display: block;
  width: 44px;
  height: 44px;
  top: 0px;
  right: 0px;
  cursor: pointer;
  opacity: 1;
}