The speak-header property specifies if the relevant table header is to be spoken before each cell, or only when the header for a given cell is different from the header for the preceding cell.
table {speak-header: once}
Possible values
once- The header is spoken one time only, before a series of cells: "Header, Cell1, Cell2...":
always- The header is spoken before each cell: "Header1, Cell1, Header1, Cell2...".
inherit- Use the same computed value as the parent element for this property.
Default value
once
Applies to
Elements that have table header information.
Inherited
Yes