Is it possible to set a conditional format to meet two criteria?

[Gooford]

When Column A is Blank and Column B = "employee" I would like column C to be highlighted in red, but I cant get this to work.

I have entered this:

=and($a1:$a100="",$b1:$b100="employee") and then selected cells $C1:$c100 in format red. No luck

Any help would be much appreciated.

Thanks

[Fotis1991]

Try this.

=and($a1="",$b1="employee")