XHTML vs HTML

Common XHTML errors

Some of the most common errors in the usage of XHTML are:

Not closing empty elements   Incorrect:

<br>

  Correct:

<br />

Not closing non-empty elements   Incorrect:

<p>Hello World<p>How are you?

  Correct:

<p>Hello World</p> <p>How are you?</p>

Improperly nesting elements (in the wrong order)   Incorrect:

<i><b>Hello World</i></b>

  Correct:

<i><b>Hello World</b></i>

Not putting quotation marks around attribute values   Incorrect: <img src=myimage.jpg width=200 height=300 />
  Correct:

<img src="myimage.jpg" width="200" height="300" />

Using the ampersand character outside of entities   Incorrect:

<p>Cars & Trucks</p>

  Correct:

<p>Cars &amp; Trucks</p>

Failing to recognize that XHTML elements and attributes are case sensitive   Incorrect:

<B>Hello World</B>

  Correct:

<b>Hello World</b>

More pages of this tutorial → XHTML vs HTML  <123456

Comments & Questions

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Fri, Apr 3 '09 by mrflowers

Keep'em coming man!

Fri, Mar 27 '09 by pocket_forza

i want more tutorials like this :D

Fri, Mar 27 '09 by 2fast 2furious

yeah! very well explained! THANK YOU VERY MUCH!

Fri, Mar 27 '09 by hendrix21

NOW I GET IT

Fri, Mar 27 '09 by ebodius

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