body {
  font-family: Arial, sans-serif;
  background-color: #f0f0f0;
  margin: 0;
  padding: 20px;
}

h1 {
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
  gap: 20px;
}

.grid-item {
  background-color: #fff;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.grid-item img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}