Description

Set whether a browser should call out the name of the table header each time it reads the value of the cell.

Example

 th{speak-header: always;}

Values
once, always
Default value
once
Introduced in CSS version
2.1
Applies to elements
th elements
Inherited
Yes
Browser Support
BrowsersIEFirefoxSafariOperaChrome
Versionsnonenonenonenonenone

See the full list CSS properties and browser support: CSS Properties