Adding Animations to a List of Item Lists

The general idea with not just mount and unmount animations, but any animation is like, you should really have your UI work first. And then layer animations on ideally animations shouldn't affect your code much at all. Sometimes you end up adding more structure to the HTML. If you need like orca straight, but in terms of like the state, the way the state and the behavior move, you shouldn't have to change anything about that. It also makes you realize too, when you come across an and an in your code base, it's like, oh, I can animate this.