HTML and CSS Reference
Specifies the position of the current element in the tabbing order for the current document.
The value must be between 0 and 32,767. It is used for tabbing through the links on a page
(or fields in a form).
title=" text string
text string "
Provides a title or advisory information about the element.
Not in HTML 4.01 . Indicates whether the element's text content and attribute values
should be translated when the document is localized. yes is the default; no leaves the ele-
ment content unchanged.
The following attributes are not included in the list of Global Attributes but are permitted in
aria-*=" text string or number
text string or number "
Not in HTML 4.01 . Allows any of the WAI-ARIA states and properties for improving ac-
cessibility to be applied to an element, for example, aria-hidden="true" . The value of
the attribute varies with the property. See www.w3.org/TR/wai-aria/states_and_properties
for information on supported of states and properties.
data-*=" text string or numerical data
text string or numerical data "
Not in HTML 4.01 . Enables authors to create custom data-related attributes, for example,
data-length , data-duration , data-speed , etc., so that nonvisible data can be embed-
ded and used by a custom application or scripts.
role=" standardized WAI-ARIA role
standardized WAI-ARIA role "
Not in HTML 4.01 . Assigns one of the standardized WAI-ARIA roles to an element to
make its purpose clearer to users with disabilities. The landmark roles ( application ,
banner , complementary , contentinfo , form , main , navigation , and search ) play
an important role in navigation on assistive devices. See www.w3.org/TR/wai-aria/
roles#role_definitions for a complete list of allowable role values.