jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
PHP is a general-purpose scripting language used for web development.
Reveal elements as they enter the viewport.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.