The <tgroup> element in a table contains column, row, spanning, header and footer specifications, and the body (<tbody>) of the table. Category: Table elements The <colspec> element contains a column specification for a table, including assigning a column name and number, cell content alignment, and column width. Category: Table elements The table header (<thead>) element precedes the table body (<tbody>) element in a complex table. Category: Table elements The <tbody> element contains the rows in a table. Category: Table elements The <row> element contains a single row in a table <tgroup>. Category: Table elements The <entry> element defines a single cell in a table. Category: Table elements