default text size

How Do I get the mac minis dock and text size back to normal. I used it this afternoon and now tonight the size is huge and I nor the person who used it after me says he changed the size. Help Me please. I hate this jumbo sized text. I want the default size back. Thank you so much.

fixed it. Somehow my display size got out of wack. found the right size and all is right.

It was the size in my display screen. Found the right size in the monitor manual and tried it, voila it worked and problem solved.