<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<style type="text/css">
body{
background: url("images/sina.jpg")no-repeat center 0;
text-align: center;
}
img{
display: none;
}
</style>
<title></title>
<script>
window.onload=function(){
var miaov=document.getElementById(‘miaov‘);
setTimeout(function(){
miaov.style.display=‘inline-block‘;
setTimeout(function(){
miaov.style.display=‘none‘;
},8000);
},2000);
};
</script>
</head>
<body>
<img id="miaov" src="images/miaov.jpg">
</body>
</html>
原文：http://www.cnblogs.com/lili-work/p/6291261.html