Help me ok please to understand

Question

What is the difference between visibility and overflow properties in css

Answer 1

The best to understand is an example. Here can you see what can be done with visibility when you click the red dots on the image:
https://code.sololearn.com/W9d2YO4bisld/?ref=app

Answer 2

Just learnt the use of border in css. So this might help you a little:
https://code.sololearn.com/W2A746A22A16