也是偶然发现的，也许有人需要吧！
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>跳转提示</title>
<style type="text/css">
*{ padding: 0; margin: 0; }
body{ background: #fff; font-family: '微软雅黑'; color: #333; font-size: 16px; }
.system-message{ padding: 24px 48px; }
.system-message h1{ font-size: 100px; font-weight: normal; line-height: 120px; margin-bottom: 12px; }
.system-message .jump{ padding-top: 10px}
.system-message .jump a{ color: #333;}
.system-message .success,.system-message .error{ line-height: 1.8em; font-size: 36px }
.system-message .detail{ font-size: 12px; line-height: 20px; margin-top: 12px; display:none}
</style>
</head>
<body>
<div class="system-message" style="text-align:center;">
<!-- <h1>:(</h1> -->
<p class="error">您还未登录！</p>
<p class="detail"></p>
<p class="jump">
页面自动 <a id="href" href="https://www.baidu.com">跳转</a> 等待时间： <b id="wait">3</b>
</p>
</div>
<script type="text/javascript">
(function(){
var wait = document.getElementById('wait'),href = document.getElementById('href').href;
var interval = setInterval(function(){
var time = --wait.innerHTML;
if(time <= 0) {
location.href = href;
clearInterval(interval);
};
}, 1000);
})();
</script>
</body>
</html>
直接全部复制另存为*.html 用浏览器打开就好了。
