Scatter letter on screen and image appearing on hover debug

I am having trouble with debugging the scatter letters and my project link aspects. I can’t figure out why on media screen it’s not working, and now I have also made the contact links disappear on both.

I am new to programming and would appreciate support to help me learn!

Below is the link to my repo.

https://github.com/milanawood/portfolio

Thank you,
Milana

I have tried changing CSS and is and keep making sure they’re correctly working together but each time I fix one thing I seem to create another issue.