#our-properties-content .our-properties-wrap {
  column-count: 4;
  column-gap: 15px;
}

#our-properties-content .listing-item {
  display: inline-block;
  width: 100%;
  margin: 0 0 15px;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

#our-properties-content .listing-image img {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 1200px) {
  #our-properties-content .our-properties-wrap { column-count: 3; }
}
@media (max-width: 768px) {
  #our-properties-content .our-properties-wrap { column-count: 2; }
}
@media (max-width: 480px) {
  #our-properties-content .our-properties-wrap { column-count: 1; }
}