.modal {
  max-width: 400px;
  margin: auto;
}

.modal-content {
  background-color: #fefefe;
  margin: auto;
  padding: 20px;
  border: 1px solid #888;
  text-align: center;
  width: 100%;
  position: relative;
}

.close {
  color: #aaa;
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}

  .close:hover,
  .close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
  }
.qrbtn {
  background: transparent;
  color: black;
  font-size: 35px;
  width: 40px;
  height: 40px;
  position: absolute;
  top: 0;
  left: 0;
  border: none;
  z-index: 10;
}
.gallery{
    position: relative;
}