Focused on using Flexbox to obtain responsive

Good job, Justin in creating your solution to this challenge. You did a nice job of figuring things out. Always keep learning and practicing to improve your skills as you go. My comments would be to work on centering the content of the teal boxes when they are on smaller screens (currently it stays left aligned which looks a bit odd with so much empty space to the right on medium-size screens). Also, there isn't any type of hover effect or interactivity with your "Sign Up" button.

If you'd like more practice with flexbox, I recommend looking at the resources page here on Frontend Mentor. It's a treasure trove of links. I personally enjoyed the flexbox learning games like Flexbox Froggy and Flexbox Zombies. They are great to get more familiar with the properties. Keep up the good work!