HTML | DOM getBoundingClientRect() Method

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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