Left-flush data/Left-justify text. This is the default value for table data. Center data/Center-justify text. This is the default value for table headers. Right-flush data/Right-justify text. Double-justify text. Align text around a specific character. If a user agent doesn't support character alignment, behavior in the presence of this value is unspecified. Cell data is flush with the top of the cell. Cell data is centered vertically within the cell. This is the default value. Cell data is flush with the bottom of the cell. 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. No sides. This is the default value. The top side only. The bottom side only. The top and bottom sides only. The left-hand side only. The right-hand side only. The right and left sides only. All four sides. All four sides. No rules. This is the default value. Rules will appear between row groups (see thead, tfoot, and tbody) and column groups (see colgroup and col) only. Rules will appear between rows only. Rules will appear between columns only. Rules will appear between all rows and columns. The current cell provides header information for the rest of the row that contains it The current cell provides header information for the rest of the column that contains it. The header cell provides header information for the rest of the row group that contains it. The header cell provides header information for the rest of the column group that contains it. 90 degrees counter-clockwise from the rest of the text flow. The same orientation as the rest of the text flow.