<!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: greenyellow;
opacity: 0.6;
}
.c2{
500px;
height: 500px;
background-color: dodgerblue;
position: fixed;
left: 50%;
top: 50%;
margin-left: -250px;
margin-top: -200px;
z-index: 10;
}
</style>
</head>
<body style="margin: 0;">
<div>
<input type="button" value="添加" onclick="show()"/>
<table>
<thead>
<tr>
<th>主机 </th>
<th>端口器</th>
</tr>
</thead>
<tbody>
<tr>
<td>123123</td>
<td>567567</td>
</tr>
<tr>
<td>789789</td>
<td>567567</td>
</tr>
<tr>
<td>11111111</td>
<td>567567</td>
</tr>
</tbody>
</table>
</div>
<!--增加表层-->
<div id="i1" class="c1 hide"></div>
<!--表层结束-->
<!--弹出框-->
<div id="i2" class="c2 hide">
<p><input type="text"/> </p>
<p><input type="text"/> </p>
<p><input type="button" value="确定"/> </p>
<p><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>