@monicaivanov
Posted
Hi, I think would be more helpful and easy to read your code if you put the CSS into a different file (style.css) and link it to your HTML file. For using the flexbox or other ways of centering block elements I recommend this article: https://css-tricks.com/centering-css-complete-guide/ . Check the grid option (last one on the page), its so clean and easy. You can find other useful articles under Guides menu.
You did a great job. Keep coding!