HTML Headings

<h1>how2html.com</h1>

<h2>how2html.com</h2>

<h3>how2html.com</h3>
<h4>how2html.com</h4>
<h5>how2html.com</h5>
<h6>how2html.com</h6>

<h1 style="color: red;">how2html.com</h1>

<h1>主标题 - <span>副标题</span></h1>

<h2><a href="https://www.how2html.com">how2html.com</a></h2>

<h3><img src="logo.png" alt="Logo"> how2html.com</h3>

<header>
  <h1>主页</h1>
</header>

<article>
  <h2>文章标题</h2>
  <p>文章内容...</p>
</article>

<ul>
  <li><h3>列表项1</h3></li>
  <li><h3>列表项2</h3></li>
</ul>