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HTML | DOM MouseEvent offsetY Property

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  • Last Updated : 31 Jan, 2019

The MouseEvent offsetY property is a read-only property and is used for returning the y-coordinate of the mouse pointer, relative to the target element.

The MouseEvent offsetY property returns a number which represents the vertical coordinate of the mouse pointer, in pixels with respect to the screen.

Syntax :


Below program illustrate the MouseEvent offsetY property :

Program: Finding out the vertical coordinate of the mouse pointer relative to a <div> element.

<!DOCTYPE html>
    <title>MouseEvent offsetY Property in HTML</title
        border:3px solid green;
        font-family: Impact;
    <h2>MouseEvent offsetY Property</h2>
        Click inside the green box to get the 
        y-coordinate relative to the top edge.
    <div onclick="coord(event)"></div>
        The y-coordinate, relative to the top edge 
        of the DIV element is: 
        <span id="test"></span>
        function coord(event) 
            var c = event.offsetY;
            document.getElementById("test").innerHTML = c;


After clicking the button

Supported Web Browsers

  • Opera
  • Internet Explorer
  • Google Chrome
  • Firefox
  • Apple Safari

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