Introduction to XHTML

XHTML is a stricter and cleaner version of HTML.

What You Should Already Know
Before you continue you should have a basic [...]

XHTML – Why?

XHTML is a combination of HTML and XML (EXtensible Markup Language).
XHTML consists of all the elements in HTML 4.01, combined [...]

Differences Between XHTML And HTML

Get Ready For XHTML
XHTML is not very different from the HTML 4.01 standard.
So, bringing your code up to the 4.01 [...]

XHTML Syntax

Some More XHTML Syntax Rules

Attribute names must be in lower case
Attribute values must be quoted
Attribute minimization is forbidden
The id attribute replaces the name attribute
The XHTML [...]

XHTML DTD

The most common DTD is XHTML Transitional.
Is Mandatory
An XHTML document consists of three main parts:
the DOCTYPE declaration
the section
the [...]

XHTML Validation

An XHTML document can be validated with W3C’s validator.

Validate XHTML With A DTD
Before an XHTML file can be validated, a [...]

XHTML Modularization

The XHTML modularization-model defines the modules of XHTML.

Why XHTML Modularization?
XHTML contains most of the functionality a web developer will need.
For [...]

You Have Learned XHTML, Now What?

XHTML Summary
This tutorial has taught you how to create stricter and cleaner HTML pages.
You have learned that all XHTML elements [...]