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XHTML Tutorial - "h1" - Heading Tags/Elements

By: FYIcenter.com

(Continued from previous topic...)

What Are Heading Tags/Elements?

Heading elements are block level elements that can be used directly as a sub-element in the body element. You can use heading elements to specify heading in different sizes. Here are basic rules about heading elements:

  • There are 6 heading elements, named as "h1", "h2", "h3", "h4", "h5", and "h6".
  • Heading elements are mixed content elements.
  • Heading elements can have empty contents.
  • Heading elements can have PCDATA as contents.
  • Heading elements can have in-line elements as contents.
  • Heading elements can not have block elements as contents.
  • Heading elements are block elements. They can not be used as in-line elements.
  • Browsers display different heading elements with different font sizes. "h1" element will be displayed with a larger font size, and "h6" with smaller font size.

Here is a good example of heading elements:

<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  <title>Levels of Headings</title>
  <h1>XHTML Recipes by FYIcenter.com</h1>
  <h2>Menu for the HEAD</h2>
  <h3>Recipe #101 - Creating Doducment Title</h3>
  <p>Bla bla...</p>
  <h2>Menu for the BODY</h2>

If you save the above document as headings.html, and view it with Internet Explorer, you will see that 3 levels of headings as shown below:
            Levels of Headings

(Continued on next topic...)

  1. What Is the "body" Tag/Element?
  2. What Is Wrong with My "body" Elements?
  3. What Elements Are Allowed as Body Sub-Elements?
  4. What Attributes Are Allowed in the Body Element?
  5. What Is a "p" Tag/Element?
  6. Can I Mix Images with Text in a Paragraph?
  7. How To Control Line Breaks in a Paragraph?
  8. How To Highlight One Part of a Paragraph?
  9. How To Get Extra Space between Paragraphs?
  10. What Is Wrong with My "p" Elements?
  11. What Is a "pre" Tag/Element?
  12. Are Tab Characters Preserved in a "pre" Element?
  13. Can Images Be Included in "pre" Elements?
  14. What Is a "blockquote" Tag/Element?
  15. Can "blockquote" Elements Be Nested?
  16. What Are Heading Tags/Elements?
  17. What Are "hr" Tags/Elements?
  18. What Are Other Block Elements?

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