Modern Front-End Development for Rails

Adding CSS Transitions

When we add the new CSS class to our elements in the previous example, the transform property changes the orientation of the element on the screen. However, we can change the element in other ways. Our new classes could specify a background color, change the margin, add a border, and so on. There are many, many properties of a DOM element that can change with the addition of new CSS classes. Generically, we can call these property changes transitions.

CSS provides what you can think of as a meta-property called transition. The transition property allows you to describe the behavior of the CSS element when one of its display properties changes. The default behavior is that the property changes instantly.

It doesn’t take ...