.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.listing-item {
  border: 1px solid #ddd;
  padding: 15px;
  border-radius: 5px;
  background-color: #f9f9f9;
}

.listing-item h3 {
  margin-top: 0;
}

.listing-item p {
  margin-bottom: 0;
}