ScrollReveal is an AniJS helper function, that allows you to animate several components when they enter the viewport. If you don't now nothing about AniJS, you can find documentation an examples at the official site. If: scroll, on: window, do: animation, to: any element
![AniJS - A ScrollReveal Demo](https://cdn-ak-scissors.b.st-hatena.com/image/square/39ba5bf8cd0edab80b88eb30c94218dfd0cc8c5b/height=288;version=1;width=512/http%3A%2F%2Fanijs.github.io%2Fexamples%2Fscrollreveal%2Fimg%2Fportfolio%2F1970.png)