HTML5 - Deprecated Tags & Attributes

Deprecated Tags

The following elements are not available in HTML5 anymore and their function is better handled by CSS −

Tags (Elements)	Description
<acronym>	Defines an acronym
<applet>	Defines an applet
<basefont>	Defines an base font for the page.
<big>	Defines big text
<center>	Defines centered text
<dir>	Defines a directory list
<font>	Defines text font, size, and color
<frame>	Defines a frame
<frameset>	Defines a set of frames
<isindex>	Defines a single-line input field
<noframes>	Defines a noframe section
<s>	Defines strikethrough text
<strike>	Defines strikethrough text
<tt>	Defines teletype text
<u>	Defines underlined text

Deprecated Attributes

HTML5 has none of the presentational attributes that were in HTML4 as their functions are better handled by CSS. Some attributes from HTML4 are no longer allowed in HTML5 at all and they have been removed completely.
Following is the table having removed attributed and their corresponding impacted tags (elements) ie. elements from which those attributes have been removed permanently −

Removed Attributes	From the Elements
rev	link, a
charset	link and a
shape	a
coords	a
longdesc	img and iframe.
target	link
nohref	area
profile	head
version	html
name	img
scheme	meta
archive	object
classid	object
codebase	object
codetype	object
declare	object
standby	object
valuetype	param
type	param
axis	td and t
abbr	td and t
scope	td
align	caption, iframe, img, input, object, legend, table, hr, div, h1, h2, h3, h4, h5, h6, p, col, colgroup, tbody, td, tfoot, th, thead and tr.
alink	body
link	body
vlink	body
text	body
background	body
bgcolor	table, tr, td, th and body.
border	table and object.
cellpadding	table
cellspacing	table
char	col, colgroup, tbody, td, tfoot, th, thead and tr.
charoff	col, colgroup, tbody, td, tfoot, th, thead and tr.
clear	br
compact	dl, menu, ol and ul.
frame	table
compact	dl, menu, ol and ul.
frame	table
frameborder	iframe
hspace	img and object.
vspace	img and object.
marginheight	iframe
marginwidth	iframe
noshade	hr
nowrap	td and th
rules	table
scrolling	iframe
size	hr
type	li, ol and ul.
valign	col, colgroup, tbody, td, tfoot, th, thead and tr
width	hr, table, td, th, col, colgroup and pre.