<!DOCTYPE>
<html>
<head>
<style>/* 定义模态对话框外面的覆盖层样式 */
#modal-overlay {
visibility: hidden;
position: absolute; /* 使用绝对定位或固定定位 */
left: 0;
top: 0;
width:100%;
height:100%;
text-align:center;
z-index: 1000;
background-color: #333;
opacity: 0.5; /* 背景半透明 */
}
/* 模态框样式 */
.modal-data{
width:300px;
margin: 100px auto;
background-color: #fff;
border:1px solid #000;
padding:15px;
text-align:center;
}
</style>
</head>
<body>
<div id="modal-overlay" style="visibility: hidden;">
<div class="modal-data">
<p>一个很简单的模态对话框 </p>
<p>点击<a onclick="overlay()" href="">这里</a>关闭</p>
</div>
</div> <a href="#" onclick="overlay()">显示模态对话框</a> <script>function overlay(){
var e1 = document.getElementById('modal-overlay');
e1.style.visibility = (e1.style.visibility == "visible")? "hidden" : "visible";
}</script>
</body>
</html>