Possible values are:
Start - Aligns columns to the top (often the left) of the row.
Center - Aligns columns to the center of the row.
End - Aligns columns to the bottom (often the right) of the row.
Around - Aligns columns in the row such that there is an equal gap between each of the columns and the start and finish of the row.
Between - Aligns columns in the row such that the gap is between the columns and not between the start and end of the row.
Example:
Possible values are: Start - Aligns columns to the top (often the left) of the row. Center - Aligns columns to the center of the row. End - Aligns columns to the bottom (often the right) of the row. Around - Aligns columns in the row such that there is an equal gap between each of the columns and the start and finish of the row. Between - Aligns columns in the row such that the gap is between the columns and not between the start and end of the row. Example: