For audio content, specifies whether table headers are spoken before every cell or just once until the header changes.
Browser/User Agent Support
| IE | Netscape | Mozilla | Opera | Safari | no | no | no | no | no |
|---|
Values
| inherit | Inherit the value from the parent element. |
| once | Speak the name of the header once. |
| always | Speak the name of the header before each associated cell. |
Availability
W3C CSS2