Will my iphone screen turn back to normal?

I dropped it, not a hard fall. And now there are like blue and black vertical lines moving. I can still see alil bit of the screen. And it still works. I can listen to music, and i can still touch the screen, i jst gotta remember where the buttons are. And I can still answer when somebody calls.

Press on the centre button

No it won't, you cracked the inner screen. Where the colors are in the phone. So it doesn't feel cracked because the outer glass isn't.