BSP HTMLB TABLE - BORDERS FOR EMPTY CELLS

Hello Colleagues, I'm new to BSP HTMLB, maybe someone could help me.

I’m taking data from a DB table through select and there are a lot empty cells.

The layout looks like:

<htmlb:tableViewColumn columnName="PK_Terms"

<%--wrapping="true"--%>

width="50"

horizontalAlignment = "center"

verticalAlignment = "middle"

fixedColumn="true">

</htmlb:tableViewColumn>

THE BORDER does not APPEAR in empty cells (the table looks horrible), how can I make it appear?