Macbook Pro display bigger than screen

I accidentally pressed some keys on the left side of my keyboard, and the display size increased to bigger than my screen. I can only see a portion of what should be displayed. To see parts that aren't on my screen, I can move the mouse to the edge of the screen, which will scroll the screen over a bit so I can see the rest. Scrolling out with two fingers doesn't help, and I tried changing the resolution, which also didn't help. Is there a way to shrink my display back to the normal size, so I don't have to scroll around to see everything that should be displayed on my screen?

Press: Option Command 8

That will turn off the zoom feature.