404 Not Found 精简美观

效果:

代码如下

<!DOCTYPE HTML>  
<html>  
<head>  
<meta charset="UTF-8" />  
<meta name="viewport" content="width=device-width, initial-scale=1">  
<meta name="robots" content="none" />  
<title>404 Not Found</title>  
<style>  
*{font-family:"Microsoft Yahei";margin:0;font-weight:lighter;text-decoration:none;text-align:center;line-height:2.2em;}  
html,body{height:100%;}
div{width:100%;text-align:center;margin-top:15%}
h1{font-size:100px;line-height:1em;}
</style>  
</head>  
<body>  
<div>
<h1>404</h1>  
<h3>大事不妙啦！</h3>  
<p>很抱歉，您要访问的页面不存在！</p>  
</div>  
</body>  
</html>