如果我們在進行CSS網頁布局的時候，還在使用被W3C廢棄的元素，那就失去了使用CSS的意義，雖然它們可能同樣被樣式控制。

　　在XHTML中不再使用HTML中的一些廢棄元素。它們主要有以下一些。

　　Elements and attributes that have been deprecated in the most recent version of XHTML, XHTML 1.0.

Elements

<applet></applet>
　　The applet element has been deprecated in favor of <object></object>.

<basefont />
　　The basefont element has been deprecated in favor of style sheets.

<blackface></blackface>
　　The blackface element is a WebTV (MSN TV) element that has been deprecated in favor of style sheets.

<blockquote></blockquote>
　　The blockquote element is deprecated in favor of style sheets when used to indent text.

<center></center>
　　The center element has been deprecated in favor of style sheets.

<dir></dir>
　　The dir element has been deprecated in favor of <ul></ul>.

<embed />
　　The embed element has been deprecated in favor of <object></object>.

<font></font>
　　The font element has been deprecated in favor of style sheets.

<i></i>
The i element has been deprecated in favor of style sheets.

<isindex />
　　The isindex element has been deprecated in favor of the input element and CGI forms.

<layer></layer>
The layer element has been deprecated in favor of style sheets.

<menu></menu>
　　The menu element has been deprecated in favor of <ul></ul>.

<noembed></noembed>
　　The noembed element has been deprecated in favor of <object></object>.

<s></s>
　　The s element has been deprecated in favor of style sheets.

<shadow></shadow>
　　The shadow element has been deprecated in favor of style sheets.

<strike></strike>
　　The strike element has been deprecated in favor of style sheets.

<u></u>
　　The strike element has been deprecated in favor of style sheets.

Attributes

alink
　　The alink attribute defines the color of an active link on the Web page. It has been deprecated in favor of style sheets.

align
　　Used to align elements vertically and horizontally on the document page, the align attribute has been deprecated in favor of style sheets.

background
　　The background attribute is used to define a background image for the element. It has been deprecated in favor of style sheets.

border
　　Used to define a border around the element, the border attribute has been deprecated in favor of style sheets.

color
　　Used to define the color of the enclosed text, the color attribute has been deprecated in favor of style sheets.

compact
　　The compact attribute is used in list tags to create a list that takes up less space. It has been deprecated in favor of style sheets.

face
　　Used to define the font face of the enclosed text, the face attribute has been deprecated in favor of style sheets.

height
　　Used to define the height of the element, the height attribute has been deprecated in favor of style sheets.

language
　　The language attribute is used to define the language used by the script element. It has been deprecated in favor of the type attribute.

link
　　The link attribute defines the color of a link on the Web page. It has been deprecated in favor of style sheets.

name
　　The name attribute names the element for use with dynamic content, it has been deprecated in favor of the id attribute.

noshade
　　The noshade attribute removes the 3-D effect from horizontal rules. It has been deprecated in favor of style sheets.

nowrap
　　Used to stop table contents from wrapping, the nowrap attribute has been deprecated in favor of style sheets.

size
　　Used to define the size of the enclosed text, the size attribute has been deprecated in favor of style sheets.

start
　　The start attribute of list tags defines the starting number of the list. This attribute has been deprecated in favor of style sheets.

text
　　The text attribute defines the color of the text on the Web page. It has been deprecated in favor of style sheets.

type
　　The type attribute of list tags defines what type of list should be used. This attribute has been deprecated in favor of style sheets.

value
　　The value attribute of list tags sets the value of the list item. This attribute has been deprecated in favor of style sheets.

version
　　The version attribute defines the version of HTML used by the document. It has been deprecated in favor of DTDs.

vlink
　　The vlink attribute defines the color of a visited link on the Web page. It has been deprecated in favor of style sheets.

width
　　The width attribute defines the width in pixels of the element. It has been deprecated in