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">
    <title>生日贺卡</title>
    <style type="text/css">
        .box {
            width: 800px;
            height: 700px;
            background-image: url(https://iknow-pic.cdn.bcebos.com/cefc1e178a82b9015c2a2b4d638da9773812efcd)
            }

        h1 {
            text-align: center;
            font-family: "楷体";
            line-height: 100px;
            font-size: 60px;
        }
        
        h2 {
            text-align: center;
            font-family: "华文仿宋";
            font-size: 50px;
            font-style: oblique;
        }
        
        h3 {
            text-align: center;
            font-family: "华文中宋";
            line-height: 100px;
            font-size: 45px;
        }
        
        p {
            text-align: left;
            font-family: "楷体";
            line-height: 50px;
            font-size: 20px;
            font-weight: bold;
            letter-spacing: 3px;
        }
    </style>
</head>

<body>
    <div class="box">
        <h1>生日快乐</h1>
        <h2>生日快乐</h2>
        <h3>生日快乐</h3>
        <p>
            我托空气为邮差,把我深深的思念装订成包裹,印上真心为邮戳,37度恒温快递,收件人是你.祝你生日快乐 盈盈今日天如水，恋恋当年水似天。情缘驻我心，相思比梦长。祝福你生日快乐!生命中的每一天永远青春靓丽!
        </p>
    </div>
</body>

</html>