how to implement Intro animations?

I would like to know how to implement initial animations on load as in this demo of the template:
http://unicon.hellominti.com/shop-custom-page/

I created a website using theme, but I can’t find any reference on how to animation the site in his initial load as in the demo above, I just have the static site and I would like to apply some fade and translate effects to the content in the initial load.

Demo

Inicio

Regards

Ticket