CSS

Hey can anyone have a look at my code on CodePen and see where I am going wrong? I have a drop down menu on the navbar when the screen is reduced, but the ul list a:hover is acting a little strange and highlighting to a different colour on the first option only for a little while and it completely does not highlight on the second option in the menu.

My second problem is the footer where the background colour is not adapting to grey even when the width is spanned 100%.

Here you'll find my code:

https://codepen.io/nazaladdin/pen/rLvkzV

Hello Frontenders,
Me and some friends are currenctly working on a project called CSSmarket. It's gonna be a website full of awesome animations
which you can sell. But we still need some more projects before the site can go online.

Would you like to help us and send one of your best projects to us so we can sell it for you? You will earn 80% of each sale!

For more information look at CSSmarket.net - Only the best animations on the web

And if you have any quetions about some Frontend I would love to try to help you!

I have used a Squarespace template to create a website. I need to modify it so that the logo on the top changes with every page. Does anyone have experience doing this?

I am new to website design. Anyone help me to find the solution of my question ?