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<h1>XHTML Syntax</h1>
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<p class="intro">Writing XHTML demands a clean HTML syntax.</p>
<hr />
<h2>Some More XHTML Syntax Rules:</h2>
<ul>
<li>Attribute names must be in <b>lower case</b></li>
<li>Attribute values must be <b> quoted</b></li>
<li>Attribute minimization is <b> forbidden</b></li>
<li>The id attribute <b> replaces</b> the name attribute</li>
<li>The XHTML DTD defines <b>mandatory</b> elements</li>
</ul>
<hr />
<h2>Attribute Names Must Be In Lower Case</h2>
<p>This is wrong:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><table WIDTH="100%"></pre>
</td></tr></table>
<p>This is correct:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><table width="100%"></pre>
</td></tr></table>
<br />
<hr />
<h2>Attribute Values Must Be Quoted</h2>
<p>This is wrong:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><table width=100%></pre>
</td></tr></table>
<p>This is correct:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><table width="100%"></pre>
</td></tr></table>
<br />
<hr />
<h2>Attribute Minimization Is Forbidden</h2>
<p>
This is wrong:
</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><input checked>
<input readonly>
<input disabled>
<option selected>
<frame noresize></pre>
</td></tr></table>
<p>This is correct:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><input checked="checked" />
<input readonly="readonly" />
<input disabled="disabled" />
<option selected="selected" />
<frame noresize="noresize" /></pre>
</td></tr></table>
<p>Here is a list of the minimized attributes in HTML and how they should be
written in XHTML:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<th valign="top" align="left">HTML</th>
<th valign="top" align="left">XHTML </th>
</tr>
<tr>
<td valign="top">compact</td>
<td valign="top">compact="compact"
</td>
</tr>
<tr>
<td valign="top">checked</td>
<td valign="top">checked="checked"
</td>
</tr>
<tr>
<td valign="top">declare</td>
<td valign="top">declare="declare"
</td>
</tr>
<tr>
<td valign="top">readonly</td>
<td valign="top">readonly="readonly"
</td>
</tr>
<tr>
<td valign="top">disabled</td>
<td valign="top">disabled="disabled"
</td>
</tr>
<tr>
<td valign="top">selected</td>
<td valign="top">selected="selected"
</td>
</tr>
<tr>
<td valign="top">defer</td>
<td valign="top">defer="defer"
</td>
</tr>
<tr>
<td valign="top">ismap</td>
<td valign="top">ismap="ismap"
</td>
</tr>
<tr>
<td valign="top">nohref</td>
<td valign="top">nohref="nohref"
</td>
</tr>
<tr>
<td valign="top">noshade</td>
<td valign="top">noshade="noshade"
</td>
</tr>
<tr>
<td valign="top">nowrap</td>
<td valign="top">nowrap="nowrap"
</td>
</tr>
<tr>
<td valign="top">multiple</td>
<td valign="top">multiple="multiple"
</td>
</tr>
<tr>
<td valign="top">noresize</td>
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