Smooth parallax scrolling effect for background images using CSS transforms with graceful degradation for old browsers. Parallax plugin with NO dependencies. jQuery supported. Youtube and Vimeo parallax supported.
Documentation on Github - https://github.com/nk-o/jarallax
Plugin for WordPress - https://nkdev.info/downloads/advanced-wordpress-backgrounds/
Jarallax © 2017 nK released under WTFPL license
All images taken from https://www.pexels.com/