img {
  height: 1200px;
  width: 800px;
  background-color: #f0f0f0;
  object-fit: cover;
}

.lazy {
  opacity: 0;
  transition: opacity 300ms ease;
}

.lazy.loaded {
  opacity: 1;
}

.gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  justify-content: center;
  margin: 20px auto;
  width: fit-content;
}



.controls {
  text-align: center;
  margin: 20px 0;
}

button {
  padding: 10px 20px;
  margin: 0 10px;
  border: none;
  background: #0066cc;
  color: #fff;
  cursor: pointer;
  border-radius: 4px;
}