Transitions and animations in CSS

To understand how Vue.js deals with transitions and animations, we will first need to have a quick refresher on how they work in CSS. We will focus on the bare basics, with the goal of revisiting the principles that govern transitions and animations. We will also look at their differences. The goal is to be able to understand better how Vue helps, rather than dive deep into the nuances of transitions and animations. 

How CSS transitions work

When we hover over an element, we put that element in a hover state. When the user triggers a hover state through their interaction with our web page, we might want to emphasize that this change of state has occurred.

To emphasize that change of state...