Part 3 - User agent style sheet override

I am in the early stages of Pt 3.
I cannot get the code to work for a screen size less than 1024px - even removing the @media qualifications and playing with other individual parameters.
Using Windows Chrome
The links and badges default to a User agent style when on a narrower screen.
the anchor after qualifier dissapears, colors change, etc.
I have searched this on google without finding a solution.
Any ideas - probably something simple but cant see it at the moment.