THead is a optional part of TGroup (part of Table). THead may have any number of ColSpecs, followed by one or more required Rows. It has common and VAlign attributes, the latter with the allowed values of Top, Middle, and Bottom (the default). THead identifies the heading information in a Table, which is displayed at the top of the Table and again at the top of any continuation after a page break between Rows in TBody.
VAlign governs the vertical positioning of text within an Entry. Allowed values are Top, Middle, and Bottom (no default).
<TABLE COLSEP="1" FRAME="all" ROWSEP="0" SHORTENTRY="0" TOCENTRY="1" TABSTYLE="decimalstyle" ORIENT="land" PGWIDE="0"> <TITLE>Sample Decimal-Aligned Table</TITLE> <TITLEABBREV>Decimal-Aligned Table</TITLEABBREV> <TGROUP ALIGN="char" CHAROFF="50" CHAR="." COLS="4"> <COLSPEC ALIGN="left" COLNUM="1" COLSEP="0" COLWIDTH="7pc"> <THEAD> <ROW> <ENTRY>Gas Ball</ENTRY> <ENTRY>1940</ENTRY> <ENTRY>1960</ENTRY> <ENTRY>1980</ENTRY> </ROW> </THEAD> <TFOOT> <ROW> <ENTRY>Rating</ENTRY> <ENTRY>3</ENTRY> <ENTRY>1</ENTRY> <ENTRY>2</ENTRY> </ROW> </TFOOT> <TBODY> <ROW> <ENTRY>Diameter</ENTRY> <ENTRY>345.021</ENTRY> <ENTRY>211.02</ENTRY> <ENTRY>221.3</ENTRY> </ROW> <ROW> <ENTRY>Color</ENTRY> <ENTRY>blue</ENTRY> <ENTRY>red</ENTRY> <ENTRY>yellow</ENTRY> </ROW> </TBODY> </TGROUP> </TABLE>