Footer menu

Hello support Team! I hired a customizer for some of my questions and they did an excellent and quick job! However while working on my page two questions still occured: 1) In the footer menu, on both sides there are two black wide lines both in the desk and mobile version. I changed the footer menu colour to blue and it works nicely but two black lines (in the desk version it is rather a square) remained there. Is it possible to remove those black lines and have that space blue as the whole footer menu? 2) The date of the post does not appear on my posts. Actually, I only would like the post date without the author name. Is it possible? Thank you for your answer!