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XHTML Tutorial - Attributes Required by XHTML Elements

By: FYIcenter.com

(Continued from previous topic...)

What Is a Required Attribute?

A required attribute is an attribute required by the XHTML element. When you write an XHTML element, you must include all attributes required by this element in the opening tag. Optional attributes can be omitted in the opening tag.

Here are some examples of required attributes:

  • <form action="submit.php"> - "form" element requires one attribute: "action".
  • <script type="text/javascript"> - "script" element requires one attribute: "type".
  • <img src="fyi.gif" alt="FYI"/> - "img" element requires two attributes: "src" and "alt".

(Continued on next topic...)

  1. What Is an XHTML Element?
  2. How To Enter Comments into XHTML Documents?
  3. How To Write the Opening Tag of an XHTML Element?
  4. How To Close an XHTML Element?
  5. What Is Wrong with My <br> Tags?
  6. What Is Wrong with My <meta> Tags?
  7. How To Enter Element Content?
  8. Is XHTML Element Name Case Sensitive?
  9. What Is an XHTML Element Attribute?
  10. How To Write Element Attributes Properly?
  11. Is Attribute Name Case Sensitive?
  12. How To Quote Element Attribute Values Properly?
  13. How To Write Ampersand Sign in Attribute Values?
  14. What Is a Required Attribute?
  15. What Are Predefined Attribute Values?
  16. What Is Wrong with My "checked" Attribute Values?

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