Using Headers Properly
Headers in HTML and XHTML are tags used to define the headings within your page. There are six levels of headings, from <h1> . . . </h1> to <h6> . . .</h6>. The <h1> . . . </h1> level header is considered the most significant header, such as a page title, with an <h2> . . .</h2>Example 2-1 shows a list of headers as they might appear in a document, although there would be text between each header.
Example 2-1. Headers with logical content contained with them
<h1>Welcome to Molly's Home Page!</h1>
<h2>Books</h2>
<h3>As Author</h3>
<h4>Book Title</h4>
Typically, you'll want more than one subheading per sectionit helps your content to be more understandable to readers. As you can see from Figure 2-1, each level header I've used has been visually formatted to be larger at the <h1> level and become progressively smaller.
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