Responsive News-Homepage-Main Built with Vanilla HTML, CSS and JS

What are you most proud of, and what would you do differently next time?

I have just learned about picture tag in html and it is very handy when it comes to make responsive images and without using any JS

What specific areas of your project would you like help with?

I want someone to help me with writing clean CSS i do not know what are the best practices for writing CSS so it would be really helpful for me if someone can give some tips for CSS