.catalog-category-view .adtc-ajax-loader,
.catalog-product-view .adtc-ajax-loader {
  height: 30px;
  width: 30px;
  background: url('../images/ajax-loader.gif') no-repeat center center;
  position: absolute;
  left: 50%;
  top: 0;
  margin-left: -15px;
}