HTML | DOM Style borderRadius Property

Last Updated : 30 Jul, 2019

The DOM Style borderRadius Property is used to set or return the four different borderRadius property such as borderTopRightRadius, borderBottomRightRadius, borderBottomLeftRadius of an element. It is used to add the rounded corner in an element.

Syntax:

It is used to get the border radius property.

object.style.borderRadius

It is used to set the borderRadius property.

object.style.borderRadius = "1-4 length|% / 1-4 length|%
|initial|inherit"

Property values:

length: This will define the shape of the corner default value is 0.
%: This will also define the shape of corner in percentage.
initial: This will set the property to it’s default value.
inherit: This will inherit the property from it’s parent element.

Return Value: It returns a string value which represent the top, left, bottom borderRadius of an element.

Example:

<!DOCTYPE html>
<html>
  
<head>
    <title>DOM Style borderRadius Property</title>
    <style>
        '
 h1 {
            color: green;
            font-size: 35px;
        }
          
        #GFG {
            background: #009900;
            padding: 30px;
            text-align: center;
            width: 300px;
            height: 120px;
        }
    </style>
</head>
  
<body>
    <center>
        <h1>GeeksForGeeks</h1>
        <h2>DOM Style borderRadius Property</H2>
        <div id="GFG">
            <h2>GeeksforGeeks</h2> </div>
        <br>
        <button onclick="Geeks()">Submit</button>
        <script>
            function Geeks() {
                document.getElementById("GFG").style.borderRadius 
                                                        = "25px";
            }
        </script>
    </center>
</body>
  
</html>