Comparison of layout engines (XHTML 1.1)

The following tables compare XHTML 1.1 compatibility and support for a number of layout engines.

XHTML 1.1 which is mainly a modularization of XHTML 1.0, is composed of 20 element modules (7 of which are submodules), including the additional Ruby Annotation Module, and two attribute modules (Server-side Image Map Module and Intrinsic Events Module).

Explanation of tables

See list of layout engines for the full list.

Values

These indicate the level of support for the given item in each engine. By default, the most recent version of the engine is implied. However, a specific version number can be listed; when this indicates full support, it's the initial version of the engine fully supporting the item.

Legend
Value Meaning
Yes Fully supported
No Has never been supported
Partial Only some values are supported
Incorrect Not implemented correctly in all cases
Experimental May be incomplete or buggy
Nightly build Currently in development; full support is expected
Depends Only supported for the specified conditions
Dropped No longer supported

Elements

Structure Module

Trident Tasman Gecko WebKit KHTML Presto iCab
body <3.1[IE 1.0]

[1]

Yes Yes Yes Yes Yes Yes
head
html <3.1[IE 1.0]

[2]

title <3.1[IE 1.0]

[3]

Text Module

Trident Tasman Gecko WebKit KHTML Presto iCab
abbr Yes Yes Yes Yes Yes Yes Yes
acronym <3.1[IE 4.0]

[4]

Yes Yes Yes Yes Yes Yes
address <3.1[IE 1.0]

[4]

Yes Yes Yes Yes Yes Yes
blockquote Yes Yes Yes Yes Yes Yes
br <3.1[IE 1.0]

[5]

Yes Yes Yes Yes Yes Yes
cite <3.1[IE 1.0]

[4]

Yes Yes Yes Yes Yes Yes
code Yes Yes Yes Yes Yes Yes
dfn Yes Yes Yes Yes Yes Yes
div <3.1[IE 3.0]

[6]

Yes Yes Yes Yes Yes Yes
em <3.1[IE 1.0]

[4]

Yes Yes Yes Yes Yes Yes
h1 Yes Yes Yes Yes Yes Yes
h2 Yes Yes Yes Yes Yes Yes
h3 Yes Yes Yes Yes Yes Yes
h4 Yes Yes Yes Yes Yes Yes
h5 Yes Yes Yes Yes Yes Yes
h6 Yes Yes Yes Yes Yes Yes
kbd Yes Yes Yes Yes Yes Yes
p <3.1[IE 1.0]

[5]

Yes Yes Yes Yes Yes Yes
pre <3.1[IE 1.0]

[4]

Yes Yes Yes Yes Yes Yes
q <3.1[IE 4.0]

[4]

Yes Yes Yes Yes Yes Yes
samp <3.1[IE 1.0]

[4]

Yes Yes Yes Yes Yes Yes
span <3.1[IE 3.0]

[6]

Yes Yes Yes Yes Yes Yes
strong <3.1[IE 1.0]

[4]

Yes Yes Yes Yes Yes Yes
var Yes Yes Yes Yes Yes Yes

Hypertext Module

Trident Tasman Gecko WebKit KHTML Presto iCab
a <3.1[IE 1.0]

[5]

Yes Yes Yes Yes Yes Yes

List Module

Trident Tasman Gecko WebKit KHTML Presto iCab
dl <3.1[IE 1]

[7]

Yes Yes Yes Yes Yes Yes
dt
dd
ol
ul
li

Presentation Module

Trident Tasman Gecko WebKit KHTML Presto iCab
b <3.1[IE 1]

[6]

Yes Yes Yes Yes Yes Yes
big <3.1[IE 3]

[6]

hr <3.1[IE 1]

[8]

i <3.1[IE 1]

[6]

small <3.1[IE 3]

[6]

sub
sup
tt Yes

Edit Module

Trident Tasman Gecko WebKit KHTML Presto iCab
del Yes Yes Yes Yes Yes Yes Yes
ins

Bi-directional Text Module

Trident Tasman Gecko WebKit KHTML Presto iCab
bdo <3.1[IE 5.0]

[6]

? Yes Yes Partial Yes ?

Forms Module

Trident Tasman Gecko WebKit KHTML Presto iCab
form Yes Yes Yes Yes Yes Yes Yes
input
select
option
textarea
button
fieldset
label
legend
optgroup

Table Module

Trident Tasman Gecko WebKit KHTML Presto iCab
caption Yes Yes Yes Yes Yes Yes Yes
table
td
th
tr
col ?
colgroup
tbody Yes
thead
tfoot ?

Image Module

Trident Tasman Gecko WebKit KHTML Presto iCab
img <3.1[IE 1.0]

[8]

Yes Yes Yes Yes Yes Yes

Client-side Image Map Module

Trident Tasman Gecko WebKit KHTML Presto iCab
area <3.1[IE 1.0]

[8]

Yes Yes Yes Yes Yes Yes
map

Object Module

Trident Tasman Gecko WebKit KHTML Presto iCab
object <3.1[IE 3.0]

[8]

Yes Yes Yes Yes Yes Yes
param

Metainformation Module

Trident Tasman Gecko WebKit KHTML Presto iCab
meta <3.1[IE 2.0]

[3]

Yes Yes Yes Yes Yes Yes

Scripting Module

Trident Tasman Gecko WebKit KHTML Presto iCab
script <3.1[IE 3.0]

[2]

Yes Yes Yes Yes Yes Yes
noscript <3.1[IE 3.0]

[2]

Style Sheet Module

Trident Tasman Gecko WebKit KHTML Presto iCab
style <3.1[IE 3.0]

[2][note 1]

Yes Yes Yes Yes Yes Yes
Trident Tasman Gecko WebKit KHTML Presto iCab
link <3.1[IE 3.0]

[3]

Yes Yes Yes Yes Yes Yes

Base Module

Trident Tasman Gecko WebKit KHTML Presto iCab
base <3.1[IE 1.0]

[3]

Yes Yes Yes Yes Yes Yes

Ruby Annotation Module

Trident Tasman Gecko WebKit KHTML Presto iCab
ruby Yes No Yes Yes No No No
rbc No No
rtc
rb Yes Yes
rt Yes Yes
rp No No

Attributes

Core

Trident Tasman Gecko WebKit KHTML Presto iCab
class Yes Yes Yes Yes Yes Yes Yes
id
title

I18N

Trident Tasman Gecko WebKit KHTML Presto iCab
dir Yes Yes Yes Yes Yes Yes Yes
xml:lang ? ? ? ? ? ? ?

Events

Trident Tasman Gecko WebKit KHTML Presto iCab
Mouse
onclick ? ? ? ? ? ? ?
ondblclick
onmousedown
onmouseup
onmouseover
onmousemove
onmouseout
Keyboard
onkeypress ? ? ? ? ? ? ?
onkeydown
onkeyup

Server-side Image Map Module

Trident Tasman Gecko WebKit KHTML Presto iCab
ismap ? ? ? ? ? ? ?

Intrinsic Events Module

Trident Tasman Gecko WebKit KHTML Presto iCab
Structure Module
onload ? ? ? ? ? ? ?
onunload
Forms Module
onchange ? ? ? ? ? ? ?
onblur
onfocus
onreset
onselect
onsubmit

Notes

  1. All style tags after the first 31 style tags are not applied.
    All style rules after the first 4,095 rules are not applied.
    On pages that uses the @import rule to continuously import external style sheets that import other style sheets, style sheets that are more than three levels deep are ignored.[9]

References

  1. "Document structure". webref.info. Retrieved 29 May 2011.
  2. "Language declarations". webref.info. Retrieved 29 May 2011.
  3. "Document properties". webref.info. Retrieved 29 May 2011.
  4. "Document layout". webref.info. Retrieved 29 May 2011.
  5. "Document layout". webref.info. Retrieved 29 May 2011.
  6. "Physical text formatting". webref.info. Retrieved 29 May 2011.
  7. "Lists". webref.info. Retrieved 29 May 2011.
  8. "Images and objects". webref.info. Retrieved 29 May 2011.
  9. "A webpage that uses CSS styles does not render correctly in Internet Explorer". Microsoft Support. Microsoft. 10 February 2011. Retrieved 29 May 2011.

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