Word Template Design loses format

The word template table I designed as a template for my various passwords has
a gray background with alternating white and dark gray coloured lines to give
an embossed appearance. When I enter info and then sort alphabetically with
the “table tools� tab, “layout� tab and “sort� in the data section, the text
sorts properly, except some coloured lines will also shift, ie, two lines of
the same colour losing the embossed look. Is there any way to sort text only
and have no effect on the background design.
Hope you can help, Thanks