Web Accessibility Initiative (WAI)
Use ARIA-role shorthand notation to assign roles to phrases to make them accessible to people with disabilities.
ARIA role shorthand assigns a "role" attribute to a phrase. The syntax is a plus-sign + immediately followed by one of the WAI-defined accessibility roles. See the bottom of this page of a complete list.
Each phrase may have only one ARIA-role attribute.
Shorthand attributes should be placed between a phrase's semantax and its textual composition. Shorthand attributes may optionally be preceded by one or more spaces. At least one space must be used after the last shorthand attribute, before the beginning of the textual composition.
A phrase may have any combination of shorthand attributes (#, ., *, ^, `, +, ? ) and they may specified in any order.
Here is what ARIA role attributes look like within the body of a manuscript.
Document structure roles