Background parallax effect is a simple jQuery background image without any library.
Uses jQuery’s scroll() function to track the scroll event and applies the exact parallax scroll effect to background images by setting their background-mode property while scrolling the page.
Must Read: Responsive Parallax Scroll Background Image with jQuery Plugin
How to make use of it:
1. Add the CSS class parallax-bg
to the parallax container.
<section class="parallax-container parallax-bg"> Parallax Container </section>
2. Add a background picture to the container.
.parallax-container { background-image: url(bg.jpg); background-size: cover; background-repeat: no-repeat; }
3. Apply the parallax scrolling effect to the background picture.
<script src="/path/to/cdn/jquery.slim.min.js"></script>
$(window).scroll(function () { parallax(); }) function parallax() { var wScroll = $(window).scrollTop(); $('.parallax-bg').css('background-position', 'center '+(wScroll*0.75)+'px') }
4. Or load the parallax.js
after jQuery.
<script src="/path/to/cdn/jquery.slim.min.js"></script> <script src="./js/parallax.js"></script>
See Demo And Download

Official Website(rakibwebdev): Click Here
This superior jQuery/javascript plugin is developed by rakibwebdev. For extra Advanced Usage, please go to the official website.