help with conditional formatting

[bookerk2]

I am trying to add a feature to a payroll workbook the sheet looks like this:
ST OT CT
0.00 10.00 0.00
0.00 10.00 0.00
0.00 0.00 10.00

So what I need to do is highlight ST and OT if ST<40 and OT>0. I have tried using data validation for this problem as well as conditional formatting. the last formula I tried was
=if(d6<40,e6>0,) for the custom conditional formatting rules. Any suggestions here?

 

[XLPadawan]

You aren't the first to have trouble with AND syntax. Try this:

=AND(D6<40,E6>0)​