/* Keep home category thumbnails at their native category_default resolution. */
.top-categories ul li.item {
  width: 309px !important;
  max-width: 100%;
  box-sizing: border-box;
}

.top-categories ul li .item-image {
  width: 309px;
  max-width: 100%;
  margin-right: auto;
  margin-left: auto;
}

.top-categories ul li .item-image img {
  display: block;
  width: 309px;
  max-width: 100%;
  height: auto;
  margin-right: auto;
  margin-left: auto;
}