universal-parallax

Universal Parallax

Easy parallax plugin using pure javascript. Cross browser support, including mobile platforms. See demo here

Features

• Easy setup
• Pure JavaScript plugin - no jQuery needed
• Adaptive height
• Mobile phone support

Install

$ npm i universal-parallax -S

Usage

#1

Include the script in your project.

<script src="node_modules/universal-parallax/dist/universal-parallax.min.js"></script>

#2

Include this CSS file in your project <link href="node_modules/universal-parallax/dist/universal-parallax.min.css" rel="stylesheet">

Or add this CSS

.parallax--container {
	position: absolute;
	clip: rect(0, auto, auto, 0);
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	z-index: -10;
}

.parallax {
	position: fixed;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	/* optional */
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
}

#3

If <section> is your container, make the parallax element inside it.

 <section>
    <div class="parallax" data-parallax-image="path/to/your_image">
 </section>

• You can also use a class to define your background-image in CSS, instead of using data-parallax-image="".

• If desired, transparency can be added to the parallax element and it won't affect the transparency of your content.

.parallax {
	opacity: 0.5;
}

#4

Fire up the JS function.

new universalParallax().init();

Custom speed

You can change the parallax speed.

new universalParallax().init({
    speed: 6.0
});

Note: speed: 1.2 is the minimum value before the background image is fixed.