实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.ads{
width:350px;
height:280px;
background-color: aquamarine;
position:fixed;
right:0px;
bottom:0;
}
button{
float: right;
margin-right: 10px;
}
</style>
</head>
<body>
<div class="ads">
<button onclick="this.parentNode.style.display = 'none'">关闭</button>
<h2> PHP中文网-固定定位广告位</h2>
</div>
</body>
</html>运行实例 »
点击 "运行实例" 按钮查看在线实例
总结：
固定定位：position:fixed;
this.parentNode：选择自身的父节点
