Move Background Image with Mouse Using JavaScript

In this tutorial we will see how to Move Background Image with Mouse Using JavaScript. The onmousemove Event and MouseEvent offset Property is used for this.

HTML Code

HTML Code is given below, This code contains the body element and background image is applied to it using CSS.

<!DOCTYPE html>
<html>
 <head>
  <title>Move Background Image with Mouse Using JavaScript</title>
 </head>
<style>
body {
margin: 0;
padding: 0;    
background-image: url(bg.jpg);
}
</style>
 <body>
 </body>
</html>

onmousemove Event

The onmousemove Event is used to execute a JavaScript function whenever mouse pointer is moved over HTML element.

The onmousemove event is supported by all major browsers.

MouseEvent offsetX Property

The MouseEvent offsetX Property is used to get the x-coordinate of the mouse pointer, relative to the selected or target HTML element.

The MouseEvent offsetX Property is supported by all major browsers.

MouseEvent offsetY Property

The MouseEvent offsetY Property is used to get the y-coordinate of the mouse pointer, relative to the selected or target HTML element.

The MouseEvent offsetY Property is supported by all major browsers.

JavaScript Code

In this example, a function is triggered when a mouse is moved anywhere over the html document. The function then gets the x-coordinates and y-coordinates of the mouse cursor with respect to the document element. These coordinates are then used to change the position of the background image.

Take a look at the code given below.

<script>
document.onmousemove = function(){
var x = event.offsetX;
var y = event.offsetY;    
document.body.style.backgroundPositionX = -x + "px";
document.body.style.backgroundPositionY = -y + "px";        
}
</script>

Demo

Video Tutorial

Watch video tutorial on how to Move Background Image with Mouse Using JavaScript.

Change Position of HTML Element using JavaScript How to Change Image on Hover with JavaScript How to Disable Button by Class Name in JavaScript How To Change Image Size with JavaScript How to change Image opacity with JavaScript How to Change image src on click with JavaScript How to get the lang attribute value in JavaScript How to Get attribute Value using JavaScript How To Check if Attribute Exists or not with JavaScript How To Count number of links on Page with JavaScript How To Scroll Page to Bottom using JavaScript How To Detect Shift Key Press with JavaScript Change Text Color On Hover with JavaScript Hide and Show div using JavaScript Get Button text with JavaScript Get textarea value with JavaScript Get table row Height with JavaScript Auto Increase width of input field with JavaScript Set Textarea maxLength with JavaScript Set Textarea Value with JavaScript JavaScript Count list items JavaScript set input field value Count Button Clicks with JavaScript Scroll Page to the Top on Click with JavaScript Change id of Element with JavaScript JavaScript Change li Text Color