Tags
<!-->
<!DOCTYPE>
<a>
<abbr>
<acronym>
<address>
<applet>
<area>
<b>
<base>
<basefont>
<bdo>
<big>
<blockquote>
<body>
<br>
<button>
<caption>
<center>
<cite>
<code>
<col>
<colgroup>
<dd>
<del>
<dfn>
<dir>
<div>
<dl>
<dt>
<em>
<fieldset>
<font>
<form>
<frame>
<frameset>
<head>
<h1> - <h6>
<hr>
<html>
<i>
<iframe>
<img>
<input>
<ins>
<kbd>
<label>
<legend>
<li>
<link>
<map>
<menu>
<meta>
<noframes>
<noscript>
<object>
<ol>
<optgroup>
<option>
<p>
<param>
<pre>
<q>
<s>
<samp>
<script>
<select>
<small>
<span>
<strike>
<strong>
<style>
<sub>
<sup>
<table>
<tbody>
<td>
<textarea>
<tfoot>
<th>
<thead>
<title>
<tr>
<tt>
<u>
<ul>
<var>

Standard
Attributes
Events

The <hn> tags

Definition and Usage

The <h1> to <h6> tags define headers. <h1> defines the largest header. <h6> defines the smallest header.

Differences Between HTML and XHTML

The "align" attribute of the h1 to h6 element was deprecated in HTML 4.01.

The "align" attribute of the h1 to h6 element is not supported in XHTML 1.0 Strict DTD.

Example

Source Output
<h1>This is header 1</h1>
<h2>This is header 2</h2>
<h3>This is header 3</h3>
<h4>This is header 4</h4>
<h5>This is header 5</h5>
<h6>This is header 6</h6>

This is header 1

This is header 2

This is header 3

This is header 4

This is header 5
This is header 6

Optional Attributes

DTD indicates in which DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.

Attribute Value Description DTD
align left
center
right
justify		 Specifies the alignment of the text in the header. Deprecated. Use styles instead TF

Standard Attributes

id, class, title, style, dir, lang, xml:lang

For a full description, go to Standard Attributes.

Event Attributes

onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup

For a full description, go to Event Attributes.