#previewImage {
  max-width: 100px;
  height: auto;
  margin-top: 10px;
  border: 1px solid #000;
  display: block;
  cursor: zoom-in;
}

#popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
}

#popup img#largeImage {
  max-width: 90%;
  max-height: 90%;
  display: block;
  margin: auto;
}

#popup.active {
  display: flex;
}

#popup .close-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: #fff;
  border: none;
  font-size: 16px;
  cursor: pointer;
  padding: 5px;
  z-index: 10001;
}