<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<style type="text/css">
#mask {
position: fixed;
z-index: 999;
width: 100%;
height: 100%;
background: #000;
opacity:0.2;
}
#loading {
width: 200px;
height: 30px;
line-height: 30px;
text-align: center;
position: fixed;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
z-index: 999;
border: solid 1px #000;
background: #333;
color:#FFF;
}
</style>
<script type="text/javascript">
window.addEventListener("load", function(args){
window.setTimeout(function () {
document.getElementById("loading").style.display = "none";
document.getElementById("mask").style.display = "none";
}, 2000);
});
</script>
<div id="mask">
</div>
<div id="loading">
loading
</div>
<button onclick="javascript:alert('OK')">Click Me</button>
</body>
</html>
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
