How to Make an Image Follow the Mouse in JavaScript

Learn why your image may not be following the mouse with JavaScript and how to fix it easily! Follow these steps to achieve the desired effect.
---
This video is based on the question https://stackoverflow.com/q/68118327/ asked by the user 'Amr Hendawy' ( https://stackoverflow.com/u/5593173/ ) and on the answer https://stackoverflow.com/a/68118395/ provided by the user 'DecPK' ( https://stackoverflow.com/u/9153448/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: why the image doesn't follow mousemove

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Why Isn't My Image Following the Mouse Movement?

If you've ever tried to make an image follow your mouse on a webpage using JavaScript but found it didn't work as expected, you're not alone. Many people encounter issues with this seemingly simple task. In this guide, we'll explore why your image might not follow the mouse and how to fix it. Let's break it down step by step.

The Problem

Your code may look like this:

[[See Video to Reveal this Text or Code Snippet]]

Common Problems

Positioning: The image needs to be positioned correctly on the page.

Unit Specification: JavaScript's e.clientX and e.clientY return values without any units, which can cause issues in CSS styling.

Let’s tackle these problems one by one to get your image moving smoothly with your mouse.

The Solution

1. Set Image Positioning

To ensure that your image can move freely across the screen, it needs to have a position style set to either absolute or fixed. Here’s how you can do that using CSS:

[[See Video to Reveal this Text or Code Snippet]]

This CSS property allows the image to be positioned absolutely in relation to the viewport or its nearest positioned ancestor.

2. Add Units to Mouse Coordinates

The e.clientX and e.clientY values that receive the mouse coordinates are just numbers, and they need units to work properly in CSS. Therefore, we must append "px" to these values like so:

[[See Video to Reveal this Text or Code Snippet]]

Putting It All Together

Here’s the complete, corrected code to make your image follow the mouse:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By addressing the positioning of your image and ensuring proper units for mouse coordinates, you can easily have an image that follows the mouse movement on your webpage. This technique can be a fun and interactive way to enhance user experience.

If you find yourself facing similar challenges in the future, remember to check both the CSS and JavaScript code to ensure everything is set up correctly.

Happy coding!

Видео How to Make an Image Follow the Mouse in JavaScript канала vlogize