responsive layout

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

i have learned how to use grid layouts.

What challenges did you encounter, and how did you overcome them?

the middle box layout in the website. when i used an height i made, the elements in the box got outside of the box

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

The box's height. i have a problem with the height of the box. When i used to make a specified height, the elements in the box was outside the box (grid, text etc..). Can you look at my css and see what i can do to optimize my css? Im a new student in a bachelor degree (technology). my professor said that you shouldnt use so much div-elements. Is it true or is it okay to use?