One of the advantages of using styles is that when you change the definition of a style, all of the tables or cells formatted with that style change to match the new style definition.
If you don’t want the style to be applied to a selected table or cell, right-click (Windows) or Control-click (Mac OS) the style in the Styles panel, and choose Edit [style name].
In the Styles panel, double-click the style, or select the style and choose Style Options from the Styles panel menu. Note that this method applies the cell style to any selected cell or the table style to any selected table. If no table is selected, double-clicking a table style sets it as the default style for any table you create.