<html>
<body>
<b>This text is bold</b> 文本加粗
<br />
<strong>This text is strong</strong> 文本强调
<br />
<big>This text is big</big> 文本加大
<br />
<em>This text is emphasized</em> 文本强调
<br />
<i>This text is italic</i> 文本斜体
<br />
<small>This text is small</small> 文本缩小
<br />
This text contains
<sub>subscript</sub> 下标文本
<br />
This text contains
<sup>superscript</sup> 上标文本
</body>
</html>
<body>
<b>This text is bold</b> 文本加粗
<br />
<strong>This text is strong</strong> 文本强调
<br />
<big>This text is big</big> 文本加大
<br />
<em>This text is emphasized</em> 文本强调
<br />
<i>This text is italic</i> 文本斜体
<br />
<small>This text is small</small> 文本缩小
<br />
This text contains
<sub>subscript</sub> 下标文本
<br />
This text contains
<sup>superscript</sup> 上标文本
</body>
</html>