.side-ad {
  position: fixed;
  top: 120px;
  width: 190px;
  height: 1100px;
  z-index: 9998;
  display: none;
}

#side-ad-left {
  left: 0;
}

#side-ad-right {
  right: 0;
}

@media (max-width: 768px) {
  .side-ad {
    display: none !important;
  }
}