body {
  font-family: sans-serif;
  background-color: #f4f4f4;
  text-align: center;
}

.gallery img {
  width: 200px;
  margin: 10px;
  cursor: pointer;
  transition: transform 0.3s;
}

.gallery img:hover {
  transform: scale(1.05);
}

.modal {
  display: none;
  position: fixed;
  z-index: 999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.8);
}

.modal img {
  margin-top: 5%;
  max-width: 80%;
  max-height: 80%;
}

.close {
  position: absolute;
  top: 20px;
  right: 40px;
  font-size: 40px;
  color: white;
  cursor: pointer;
}