
gyroBackground.js is a pure JavaScript library that applies an iOS-style parallax motion effect to images using WebVR API.
Make sure to visit the demo page on your mobile devices which support WebVR:

How to use it:
Installation:
# Yarn $ yarn add gyrobackground # NPM $ npm install gyrobackground --save
Import the gyroBackground.js library.
<script src="dist/gyroBackground.min.js"></script>
Create a container in which you want to display the parallax images.
<div id="target" class="gyro"> ... </div>
Initialize the library on the container element and specify the path to the parallax image.
var background = new GyroBackground('.gyro', 'bg.jpg', {
// options here
});You can add more parallax images (layers) to the container.
background.add('bg-2.jpg', {
// options here
});Config the parallax motion effect by overring the following parameters:
var background = new GyroBackground('.gyro', 'bg.jpg', {
// sensitivity
sensitivity: 0.5,
// inverts effect
inverted: false,
// enables the parallax effect on devices that don't have WebVR support.
parallax: false,
// parallax speed
parallaxSpeed: -2,
// sensitivity in portrait mode.
portraitSensitivity: portraitSensitivity,
// sensitivity in landscape mode.
landscapeSensitivity: landscapeSensitivity,
// zoom levels
zoom: 0,
portraitZoom: portraitZoom,
landscapeZoom: landscapeZoom,
// offset options
offsetX: 0,
offsetY: 0,
portraitOffsetX: portraitOffsetX,
portraitOffsetY: portraitOffsetY,
landscapeOffsetX: landscapeOffsetX,
landscapeOffsetY: landscapeOffsetY,
// shows a 3D representation of the phone's original position vs current.
visualize: false,
// additional class
className: false
});







How to add in a website without using yarn or NPM ? i juste need to add the effect on ma page in wordpress ;)