I am trying to replace my light switch. It had an older switch and had
three screws on it. On these it had black, red, and white attached.
My new one had three screws, but one of the screws was for ground. I
didn't have any place to put the white wire.

On the top screw I put red and white and on the bottom screw I put
black.

It works, but is this correct?

Thank you.