Text box with an effect, affecting the separarate text box below it.

Hi,

Two text boxes...

There is a way to prevent the 2nd text box from receiving the "overspill" of an effect applied to the 1st. Can you please jog my memory how to do this?

Both text boxes have outer glow applied, but at different opacities, different spread %s. I need to prevent these text boxes from affecting each other. The outer glow is to help mask background info.

Thank you!