Sets the horizontal (line) alignment inside a table cell. (This attribute is based on and intended to be converted easily to the XHMTL valign attribute.)
Within a NISO JATS table (based on and designed to be converted easily to the XHTML 1.1 table model) this attribute specifies the vertical position of data within a table cell, for example, flush to the top of the cell.
|baseline||All cells in the same row as a cell whose @valign attribute has this value should have their textual data positioned so that the first text line occurs on a baseline common to all cells in the row. This constraint does not apply to subsequent text lines in these cells.|
|bottom||Cell data is flush with the bottom of the cell.|
|middle||Cell data is centered vertically within the cell.|
|top||Cell data is flush with the top of the cell.|