HTML5基础知识(2)--标题标签的使用

时间:2023-03-08 22:39:00
HTML5基础知识(2)--标题标签的使用

  1.HTML文档中包含各种级别的标题,各种级别的标题由<h1>到<h6>元素来定义,<h1>至<h6>标题标记中的字母h是英文headline的简称。其中<h1>代表1级标题,级别最高,文字也最大,其他标题元素依次递减,<h6>级别最小。

  2.案例代码

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>文本标题</title>
</head>
<body>
<h1>这是1级标题</h1>
<h2>这是2级标题</h2>
<h3>这是3级标题</h3>
<h4>这是4级标题</h4>
<h5>这是5级标题</h5>
<h6>这是6级标题</h6>
</body>
</html>

  3.案例截图

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" 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