本文实例为大家分享了js遮罩效果弹出界面的具体代码，供大家参考，具体内容如下
<head>
<meta charset="UTF-8">
<title>遮罩</title>
<style>
* {
margin: 0;
padding: 0;
}
#shade{
position: fixed;
width: 100%;
height: 100%;
display: none;
}
.shade-background{
width: 100%;
height: 100%;
background-color: #CCCCCC;
opacity: 0.5;
}
#register{
position: relative;
background-color: #fff;
width: 500px;
height: 300px;
top: -70%;
margin: 0 auto;
}
</style>
</head>
<body>
<div id="shade">
<div class="shade-background"></div>
<div id="register">
用户名<input type="" name="" id="" value="" /><br />
密 码<input type="" name="" id="" value="" /><br />
<input type="submit" name="" id="reg" value="注册" />
</div>
</div>
<div>
<input type="button" name="" id="btn" value="弹出遮罩" />
</div>
</body>
<script>
var shade = document.getElementById("shade");
var btn = document.getElementById("btn");
var reg = document.getElementById("reg");
btn.onclick = function(){
shade.style.display = "block"
}
reg.onclick = function(){
shade.style.display = "none"
}
</script>
效果图：
