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document.elementFromPoint

The elementFromPoint() method of the Document interface returns the topmost element at the specified coordinates.

If the element at the specified point belongs to another document (for example, an iframe's subdocument), the subdocument's parent element is returned (the iframe itself). If the element at the given point is anonymous or XBL generated content, such as a textbox's scroll bars, then the first non-anonymous ancestor element (for example, the textbox) is returned.

If the specified point is outside the visible bounds of the document or either coordinate is negative, the result is null.

If you need to find the specific position inside the element, use Document.caretPositionFromPoint().

Note: Callers from XUL documents should wait until the onload event has fired before calling this method.

Syntax

var element = document.elementFromPoint(x, y);

Parameters

x: A horizontal position within the current viewport.
y: A vertical position within the current viewport.

Return value

The topmost Element object under the given points.

Example

<!DOCTYPE html>
<html lang="en">
<head>
<title>elementFromPoint example</title>

<script>
function changeColor(newColor) {
  elem = document.elementFromPoint(2, 2);
  elem.style.color = newColor;
}
</script>
</head>

<body>
<p id="para1">Some text here</p>
<button onclick="changeColor('blue');">blue</button>
<button onclick="changeColor('red');">red</button>
</body>
</html>

Demo

Specifications

Specification	Status	Comment
CSS Object Model (CSSOM) View Module The definition of 'elementFromPoint' in that specification.	Working Draft	Initial definition.

Browser compatibility

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	4.0	(Yes)	3	5.5	10.50	(Yes)

Feature	Android	Chrome for Android	Edge	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	?	(Yes)	(Yes)	?	?	?	?

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https://developer.mozilla.org/en-US/docs/Web/API/document/elementFromPoint