+ 2.0 3.0 3.2 4.0 1.0 2.0 3.0 4.0   1.0 2.0 3.0 4.0   1.0 2.0       1.0 2.1       0.9 1.2

<thead> container CSS: in-line element start tag required end tag optional Sandia Reference

The <thead> tag divides the table into one of three horizontally oriented parts. <colgroup> divides the table vertically. The greatest possible use of this tag is when a table is presented that transcends printed page bounaries. The <thead> tag will allow the browser to reprint the table heading on each page. The <tfoot> tag provides the same for the table footer.

This is not the only use of <thead>, If a browser recognizes the tag, it will also allow the "rules=" attribute to draw rules between the <thead> and the <tbody> groups.

align= + 2.0 3.0 3.2 4.0? 0.9 1.2		specifies the horizontal alignment of the cell contents
	center + 2.0 3.0 3.2 4.0? 0.9 1.2	the text is centered between the cell margins In the example that follows, the <thead> tag uses the align="center" attribute. If you are using MSIE 4.0 b1, the 'rules="groups"' has also been set in the <table> tag. cell #1 cell #2 cell #3 cell #4 cell #5 cell #6
	char + 2.0 3.0 3.2 4.0?	This defines the alignment character typically used for decimal alignment.
	justify + 2.0 3.0 3.2 4.0? 0.9 1.2
	left + 2.0 3.0 3.2 4.0? 0.9 1.2	text within the cell is flush left.
	right + 2.0 3.0 3.2 4.0? 0.9 1.2	the text within the cell is flush right
	decimal	data in the cell is flush to a point using a character as the axis.
cellhalign= + 2.0 3.0 3.2 4.0		Provides control of the horizontal alignment of data in the cells. This is an identical condition to "align=", above, so the purpose of this attribute is not certain.
	"left"	This is total supposition on the part of the author! The specification (HTML 4.0) gives no arguments to this attribute.
	"center"	This is total supposition on the part of the author! The specification (HTML 4.0) gives no arguments to this attribute.
	"right"	This is total supposition on the part of the author! The specification (HTML 4.0) gives no arguments to this attribute.
cellvalign= + 2.0 3.0 3.2 4.0		Controls the vertical alignment of data in the cell. This is an identical condition to "valign=" below, so the purpose of this attribute is unclear, given the lack of arguments in the specification.
	"bottom"	This is total supposition on the part of the author! The specification (HTML 4.0) gives no arguments to this attribute.
	"middle"	This is total supposition on the part of the author! The specification (HTML 4.0) gives no arguments to this attribute.
	"top"	This is total supposition on the part of the author! The specification (HTML 4.0) gives no arguments to this attribute.
char= + 2.0 3.0 3.2 4.0		CHAR specifies a single character to be used for alignment, and defaults to the decimal point in the current language. (Sandia)
charoff= + 2.0 3.0 3.2 4.0		CHAROFF specifies the offset, in the DIR direction, to the first occurrence of the CHAR character on each line. If a line doesn't include the CHAR character, it is to end at the CHAROFF position. The default value for CHAROFF is either 50% or whatever will cause the CHAR characters in all cells with a declared CHAR in a column to align.(Sandia)
class= + 2.0 3.0 3.2 4.0 0.9 1.2
dir= + 2.0 3.0 3.2 4.0
	ltr
	rtl
id= + 2.0 3.0 3.2 4.0 0.9 1.2
lang= + 2.0 3.0 3.2 4.0
style= + 2.0 3.0 3.2 4.0 0.9 1.2
title= + 2.0 3.0 3.2 4.0
valign= + 2.0 3.0 3.2 4.0 0.9 1.2		specifes that the text can be top or bottom aligned. The default is center aligned. (IExplorer)
	top + 2.0 3.0 3.2 4.0 0.9 1.2	causes the cell data to be placed at the top of the cell. valign="top"
	bottom + 2.0 3.0 3.2 4.0 0.9 1.2	causes the cell data to be placed at the bottom of the cell. valign="bottom"
	middle default + 2.0 3.0 3.2 4.0 0.9 1.2	The cell contents are centered vertically in each cell. valign="middle"
	baseline + 2.0 3.0 3.2 4.0	This is used when you want to ensure that all cells in the row share the same baseline. This constraint only applies to the first text line for each cell. valign="baseline"