How can I make parts of a GUI invisible?

Okay, Thanks for whoever takes the time to experiment and explain this to me. Much Appreciated.

Lets say, I have a GUI FRAME. The FRAME is Smaller than the screen, so you can see around the FRAME. The FRAME is not touching any sides and corners of the screen, It lies in the true center of the screen.

Inside the FRAME is an IMAGE BUTTON. The IMAGE BUTTON is half way in the FRAME, and halfway out of the frame, so it sticks out on the FRAME's side.

What I am trying to do, is make the sticking out portion invisible, while keeping anything in the FRAME visible.

Thanks!

Go to the button and go to properties it will show visible tick it off and you should be set please click answered if I did help you.