Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Hold down the Alt key on your keyboard.
Then while holding it down, press the V key once and release both keys.
Then press the Z key.
Then press the R key.
If you are in your web browser, this should reset the view-zoom or 'size' of the view.
Does that fix the problem? or is it in a different area?