以编程方式关闭Modal底层工作表

<!-- HTML -->
<div id="modal" class="modal">
  <div class="modal-content">
    <span class="close">&times;</span>
    <p>Modal content goes here.</p>
  </div>
</div>

<!-- CSS -->
<style>
.modal {
  display: none;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
  background-color: #fefefe;
  margin: 15% auto;
  padding: 20px;
  border: 1px solid #888;
  width: 80%;
}

.close {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}
</style>

<!-- JavaScript -->
<script>
// Get the modal element
var modal = document.getElementById("modal");

// Get the close button element
var closeBtn = document.getElementsByClassName("close")[0];

// Function to open the modal
function openModal() {
  modal.style.display = "block";
}

// Function to close the modal
function closeModal() {
  modal.style.display = "none";
}

// Event listener for close button click
closeBtn.addEventListener("click", closeModal);

// Event listener for outside click
window.addEventListener("click", function(event) {
  if (event.target == modal) {
    closeModal();
  }
});
</script>