I use semantic HTML to structure the page. Css margin, text-align, etc

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

The overall project. I also have a fully understanding of what CSS box-shadow is all about.

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

Adding the box-shadow to the main container. I overcome this by referring to my friend, and he taught me about it.

I also could not center my main container vertically, and I am yet to overcome it.

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

The overall page. But, the font sizing and weight, are among the things I felt like did not match the challenge.

I also could not center the main container vertically, I only centered it horizontally. Please any suggestion on how to center it vertically?