console 命令行工具 X clear
console
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        .box{
            width: 300px;
            height: auto;
            padding: 10px;
            margin: 20px;
            border: 5px solid #999; 
        }
        .box p{
            font-size: 12px;
            text-indent : 2em;
        }
    </style>
</head>
<body>
    <div class="box">
        <p>WEB标准不是某一个标准，而是我是你爹</p>
        <p>内容和形式分离，网页前台只需要你爹</p>
    </div>
</body>
</html>