3-column responsive page using flexbox

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

I am proud that this is my first completed challenge, even though it is a very simple one.

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

One challenge was that the cards changed their size depending on the number of text rows. For example, if one card had 5 text rows, and the other cards had only 4, the one that 5 rows increased slightly in size, making the cards seem disproportionate. Fixed that by applying "align-items: stretch;" to the flex container. This makes all the cards have the same size as the tallest item.

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

I am sure that there are lots of ways to improve my code. I would really like to know what improvements I can make to my code, especially for CSS.