.modal1 {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transform: scale(1.1);
  transition: visibility 0s linear 0.25s, opacity 0.25s 0s, transform 0.25s;
}

.modal1 .modal-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: white;
  padding: 20px;
  border-radius: 5px;
  width: 300px;
}

.modal1 .close-button {
  float: right;
  cursor: pointer;
}

.modal1.show-modal1 {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  z-index: 1000;
}