<!--html:5 +tab-->
<!DOCTYPE html>
<html lang="zh">
<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>
</head>
<body>
</body>
</html>
<!--html:xt +tab XHTML过渡型文档类型-->
<!--网址规范的解析的规则 transitional:过渡-->
<!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" xml:lang="zh">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title>Document</title>
</head>
<body>
</body>
</html>
<!--html:4s +tab-->
<!--strict ：严格的 完全按照h4的请求进行解析-->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="zh">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title>Document</title>
</head>
<body>
</body>
</html>
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