Props

Prop	Type	Default	Description
align	'start' | 'center' | 'end'	—	Alignment of the header text. Left untouched, the cell uses the table's default alignment.
colSpan	number	—	How many columns the header cell covers.
rowSpan	number	—	How many rows the header cell covers.

Slots

• default: the header cell content.

Attributes

The rest of the attributes land on the <th>, so class, style, and id work as they do on a plain header cell. The rendered element always carries scope="col", which is what lets a screen reader tie each column's cells to this header.