char

text is aligned to the leftmost occurrence of the value of the attribute char value. When the attribute align is set to "char", attributes char and charoff must be used. The attribute char is the single character that is used to align the text. The most common use is to align on a decimal separator [.] for decimal alignment of a column of numbers.
the value is used when the value of the align attribute is "char". The value is the single alignment character source for any implied "char" values and must only be used when the align attribute is set to "char".