###Challenge 1
I floated divs 2 and 3 to the right and switched the order of divs 2 and 3 in the html. I also added a left margin to div 3.
[challenge 1] (https://codepen.io/gness1804/pen/oLAbmG)
###Challenge 2
I created a container element to keep the divs from touching the bottom of the screen. I also floated div 3 to the right and added margin:auto to div 2.