使用jQuery打开CSS only model弹出窗口

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>

<div id="myModal" class="modal">
  <div class="modal-content">
    <span class="close">&times;</span>
    <p>这是一个弹出窗口。</p>
  </div>
</div>

.modal {
  display: none;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.5);
}

.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;
}

$(document).ready(function() {
  // 打开弹出窗口
  $("#openModal").click(function() {
    $("#myModal").css("display", "block");
  });

  // 关闭弹出窗口
  $(".close").click(function() {
    $("#myModal").css("display", "none");
  });
});