 CSS may be simple to learn, but it is not easy. Just take this box. It was a simple box, but if we break it down into its pieces, it has a content box, a padding box, a border box, a background box, and a shadow box, and these are all things you have to worry about. And now just imagine stacking these next to other boxes, and the box is interacting with those boxes, changing the shape of other boxes, and now we have ourselves a really big mess. This is a lot of work. So this visual really helps people understand all the different layers that go into a box and how they layer on top of each other. The padding box, and the border box, and the background box, and the shadow box because it looks like one box when it's all together, but it is actually made of many. I hope this Exploder Node visual helped you out, and keep on the lookout for the next gooey snippet. I'll see you later, y'all.