JavaScript element.offsetTop Property

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JavaScript element.offsetTop Property

The element.offsetTop property returns the margin-top of an element with respect to it parent element.

Note: This property is read-only.

Example

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<!DOCTYPE html> <html> <body> <div id="parent"> <div id="child"> <p><b>offsetTop</b> = margin-top (from its parent element);</p> <p><b>offsetTop</b> = 10;</p> </div> </div> <p>Click on the button to display the offsetTop of the child div.</p> <button onclick="myFunction()">Click Me</button> <p id="point"></p> <script> var x = document.getElementById("point"); var elem = document.getElementById("child"); function myFunction(){ x.innerHTML = "offsetTop = " + elem.offsetTop; } </script> </body> </html>

Syntax

element.offsetTop

Return Values

ValueExplanation
NumberReturns the margin-top of an element with respect to it parent element.

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