XHTML Tags Support by DDI¶
The following table provides the tag names, descriptions, and legal content for all XHTML tags supported by DDI. A list of unsupported tags follows this list. Most tags support several types of core attributes covering classification, style, internationalization, and events. Refer to W3C for detailed information on attribute usage.
Note that these elements exist in the xhtml namespace and must be prefixed with that namespace, e.g. <xhtml:p>
Additional information about XHTML tags can be found at http://www.w3schools.com/tags/default.asp
Block Elements¶
Element |
Description |
Support |
|---|---|---|
address |
Contact information for the document owner or author blockquote block quotation, a long quotation set off in a block of text |
May contain Inline Elements or text |
blockquote |
Block quotation, a long quotation set off in a block of text |
Contains Block Elements |
div |
Division - generic way to divide group contents |
May contain Block Elements, Inline Elements or text |
dl |
Definition list |
Must contain at least one dt or dd element |
h1 |
Heading level 1 |
May contain Inline Elements or text |
h2 |
Heading level 2 |
May contain Inline Elements or text |
h3 |
Heading level 3 |
May contain Inline Elements or text |
h4 |
Heading level 4 |
May contain Inline Elements or text |
h5 |
Heading level 5 |
May contain Inline Elements or text |
h6 |
Heading level 6 |
May contain Inline Elements or text |
hr |
Horizontal line - content separator |
No content expressed as <xhtml:hr/> |
ol |
Ordered list |
Must contain at least one li |
p |
Paragraph |
May contain Inline Elements or text |
pre |
Preformatted text |
May contain Inline Elements (except img, object, big, small, sub, and sub, at any depth) or text |
table |
Table |
Contains: caption may appear as the first item and only once; optional col or colgroup; one or more of the following tags in order: thead (0..1 and only if tbody is used), tfoot (0..1 only if tbody is used) , tbody (1..n) OR tr (1..n) |
ul |
Unordered list |
Must contain one or more li |
Inline Elements¶
Element |
Description |
Support |
|---|---|---|
a |
Anchor which defines the hypertext link using an id attribute |
May contain Inline Elements (except a at any depth) or text |
abbr |
Abbreviation |
May contain Inline Elements or text |
acronym |
Acronym |
May contain Inline Elements or text |
b |
Bold |
May contain Inline Elements or text |
big |
Big text |
May contain Inline Elements or text |
br |
Line break |
No content expressed as <xhtml:hr/> |
cite |
Citation |
May contain Inline Elements or text |
code |
Computer code text |
May contain Inline Elements or text |
dfn |
Definition term |
May contain Inline Elements or text |
em |
Emphasized text |
May contain Inline Elements or text |
i |
Italics |
May contain Inline Elements or text |
kbd |
Keyboard text |
May contain Inline Elements or text |
q |
Quotation, short in line |
May contain Inline Elements or text |
samp |
Sample computer code |
May contain Inline Elements or text |
small |
Small text |
May contain Inline Elements or text |
span |
Section in a document |
May contain Inline Elements or text |
strong |
Strong text |
May contain Inline Elements or text |
sub |
Subscripted text |
May contain Inline Elements or text |
sup |
Superscripted text |
May contain Inline Elements or text |
tt |
Teletype text or monospaced text style |
May contain Inline Elements or text |
var |
Variable part of text - indicates instance of a computer code variable or program argument |
May contain Inline Elements or text |
List Elements¶
Element |
Description |
Support |
|---|---|---|
dd |
List definition description |
May contain Block Elements, Inline Elements or text |
dt |
Definition (list) term |
May contain Inline Elements or text |
li |
List item - ordered or unordered |
May contain Block Elements, Inline Elements or text |
Table Elements¶
Element |
Description |
Support |
|---|---|---|
caption |
Table caption |
May contain Inline Elements or text |
col |
Attribute values for one or more columns |
No content - provides attributes describing alignment, width, formating of cells |
colgroup |
group of columns in a table for formatting |
May contain col |
tbody |
Body content in a table |
May contain tr |
td |
Cell in a table |
May contain Block Elements, Inline Elements or text |
tfoot |
Footer content in a table |
May contain tr |
th |
Header cell in a table |
May contain Block Elements, Inline Elements or text |
thead |
Header content in a table |
May contain tr |
tr |
Row in a table |
Must contain one or more of td OR th |
Unsupported Elements¶
Element |
Description |
|---|---|
del |
Delete content |
fieldset |
Form control group |
form |
data entry form |
nocript |
alternate content for client-side script |
ins |
inserted content |
script |
client-side script |
bdo |
bidirectional text override |