HTML onwheel attribute: This attribute defines the wheel of a pointing device is rolled up or down over an element. The onwheel attribute also defines the user scrolls on an element by using a mouse. And it is a section of the Event Attributes.
HTML onwheel attribute
This attribute will not be supported in HTML 4. And it was newly added to HTML 5.
Attribute Value: This attribute contains a single value script and it works when onwheel attribute called. It is supported by all HTML elements.
Syntax: <element onwheel =”script”>
Browser Support
This attribute was supported by different types of browsers. They are as follows:
- Chrome -31.0
- Firefox – 17.0
- InternetExplorer – Not supported
- Safari – Not supported
- Opera -18.0
Example:
<!DOCTYPE html> <html> <head> <style> #myDIV { border: 1px solid black; } </style> </head> <body> <div id="myDIV" onwheel="myFunction()">This example demonstrates how to assign an "onwheel" event event to a DIV element. Roll the mouse wheel over me - either up or down!</div> <p>A function is triggered when you roll the mouse wheel over div. The function sets the font-size of div to 35 pixels.</p> <p><strong>Note:</strong> The onwheel event is not supported in Internet Explorer or Safari.</p> <script> function myFunction() { document.getElementById("myDIV").style.fontSize = "35px"; } </script> </body> </html>
Output: