Chat App CSS illustration

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

This challenge has been different from the previous challenges that I have solved previously on Frontend Mentor.

During this challenge I have spent most of my time in fine tuning unlike other challenges. And I feel the solution came well.

Coming to issues, I have problem in recreating the input button which is present in the bottom section of the messages section.

Please have a look at the solution, Will be looking for the reviews and suggestions.

Thanks in advance.