How to conditionally format a dynamic range

Hey Forum,

I am wondering how to conditionally format a range which may expand vertically or horizontally at any point, if more line items are added.
The Conditional format is essentially blocking out any Blank cell and turning it grey (see example)
I would like the conditional format to make all the cells that are empty, grey where:
For rows: Where there is text on the preceding row, add + 1 to the conditional format so it formats the next row as grey.
For columns: Where there is text on the preceding column, add + 1 to the conditional format so it formats the next column as grey.

Kind Regards,

Julian