Clipboard landing page solution with HTML and CSS

Hi guys, really had fun working on this one and to be honest. I did face some challenges in this design cuz its the largest/longest website I've worked with and I had difficulty naming the classes and it got confusing at some point too. Also I didn't make the website responsive which I have to work on as most of the sites I've built so far aren't but I'm working on it. Let me know if you have any tips for naming classes or how to structure my code more better (be it HTML or CSS)

Thanks codefriends