<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.hide{
display: none;
}
.c1{
position: fixed;
left:0;
top:0;
right:0;
bottom:0;
background-color: grey;
opacity:0.7;
z-index: 9;
}
.c2{
width:500px;
height:400px;
background-color: white;
position: fixed;
left:50%;
top:50%;
margin-left: -250px;
margin-top: -200px;
z-index: 10;
}
</style>
</head>
<body style="margin: 0 auto">
<div >
<input type="button" value="添加" onclick="show()">
<table>
<thead>
<tr>
<th>选择</th>
<th>主机名</th>
<th>端口</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="checkbox" /></td>
<td>1.1.1.1</td>
<td>190</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>1.1.1.2</td>
<td>191</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>1.1.1.3</td>
<td>192</td>
</tr>
</tbody>
</table>
</div>
<!--第二层的遮罩层开始-->
<div id="i1" class="c1 hide"></div>
<!--第二层的遮罩层结束-->
<!--弹出框开始-->
<div id="i2" class="c2 hide">
<p><input type="text"></p>
<p><input type="text"></p>
<p>
<input type="button" value="确定">
<input type="button" value="取消" onclick="hide()">
</p>
</div>
<!--弹出框结束-->
<script>
function show() {
document.getElementById("i1").classList.remove('hide');
document.getElementById("i2").classList.remove('hide');
}
function hide() {
document.getElementById("i1").classList.add('hide');
document.getElementById("i2").classList.add('hide');
}
</script>
</body>
</html>
