• CellBaseline is an option for cells that determines the vertical alignment of inline cells (typically typeset expressions or graphics embedded in text).
• CellBaselinenumber specifies the baseline in points measured from the top of the cell. This position will be aligned with the baseline of the surrounding text. • Other possible settings are as follows.
number specifies the baseline in points measured from the top of the cell. This position will be aligned with the baseline of the surrounding text. 
