HTML | DOM getBoundingClientRect() Method

Difficulty Level : Basic
Last Updated : 25 Jul, 2019

HTML DOM getBoundingClientRect() Method returns the relative positioning to the viewport.
It returns eight properties: left, top, right, bottom, x, y, width, height.
Scrolling will change the position value.

Syntax:

var rect = div.getBoundingClientRect();

Example:

<!DOCTYPE html>
<html>
  
<head>
    <title>
        HTML | DOM getBoundingClientRect() Method
    </title>
    <script>
        function myFunction() {
            var div = document.getElementById("myDiv");
            var rectangle = div.getBoundingClientRect();
            x = rectangle.left;
            y = rectangle.top;
            w = rectangle.width;
            h = rectangle.height;
  
            alert("Left:" + x + ", Top:" + y +
                ", Width:" + w + ", Height:" + h);
        }
    </script>
</head>
  
<body>
    <button onclick="myFunction()">
        GET POSITION
    </button>
    <div style="height:300px; 
                width:400px;
                overflow:auto;">
  
        <div id="myDiv" style="width:350px;
                               height:250px; 
                               background-color:lightgreen;
                               border:2px SOLID green;">
  
            Use scrollbar to change the position.
        </div>
        <div style="width:1500px;
                    height:1500px; ">
        </div>
    </div>
    <br>
  
</body>
  
</html>

Output:
Before Click:

After Click:

Supported Browsers:

Chrome 1.0
Internet Explorer 9.0
FireFox 3.0
Opera 9.5
Safari 4.0

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