HTML Element Content Models
What Are the HTML Element Content Models?
There are 4 content models defined for HTML elements:
1. EMPTY - No content. Nothing between the opening tag and the closing tag. For example:
<br/> - "br" element has no content. <br></br> - Same as above. <meta name="Author" content="FYICenter.com"/>
2. PCDATA - Parsed Character DATA. A string of characters and character entities. Empty content is allowed in this model. But no other HTML elements are allowed in the content.
<!-- PCDATA: Pure character string --> <title>My First HTML Document</title> <!-- PCDATA: Empty string --> <textarea rows="4" cols="40"></textarea> <!-- PCDATA: Characters mixed with entities --> <textarea rows="4" cols="40"> while ($i=0; $i<3; %i++) print "Knock "; </textarea>
3. Sub-elements only - A sequence of sub-elements. No character strings are allowed in the content.
<!-- Sub-elements only: "head" can only take sub-elements like "title" and "meta" --> <head> <title>My First HTML Document</title> <meta name="Author" content="FYICenter.com"/> </head> <!-- Sub-elements only: "tr" can only take sub-elements like "td" --> <tr> <td>Author:</td> <td>FYIcenter.com</td> </tr> <!-- Sub-elements only: "ul" can only take sub-elements like "li" --> <ul> <li>My First XHTML Document</li> </ul>
4. Mixed - A mixture of PCDATA and sub-elements. Empty content is also allowed in this model.
<!-- Mixed content: "p" is having text strings mixed an "em" element --> <p>The nature of <em>yin and yang</em> is relative.</p> <!-- Mixed content: "td" is having text strings mixed with a "p" element --> <td>Dear Visitor, <p>Welcome to FYIcenter.com!</p> Thank you. </td>
2017-07-30, 1134👍, 0💬
Can Two Forms Be Nested? Can two forms be nested? The answer is no and yes: No. You can not nest two...
What Is the 2017 Version of Azure API Management Service? The 2017 Version of Azure API Management a...
Where to find tutorials on Using Azure API Management Developer Portal? Here is a list of tutorials ...
Can You Specify the "new line" Character in Single-Quoted Strings? You can not specify the "new line...
FYIcenter JSON Validator and Formatter is an online tool that checks for syntax errors of JSON text ...