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The border-radius Property in CSS

CSS | border-radius Property: In this tutorial, we are going to learn about the border-radius property in CSS (Cascading Style Sheet).
Submitted by Anjali Singh, on December 04, 2019

CSS | border-radius Property

The border-radius property is commonly used to convert box elements into circles. We can convert box elements into the circle element by setting the border-radius to half of the length of a square element.

Syntax:

Element {
    Width: 150px;
    Height: 150px;
    border-radius: 50%;
}

Example:

<!DOCTYPE html>
<html>

<head>
    <style>
        p {
            background: #73AD21;
            width: 200px;
            height: 150px;
            border-radius: 50%
        }
    </style>
</head>

<body>
    <h1>CSS Rounded Corners</h1>
    <p></p>
</body>

</html>

Output

Border Radius Property in CSS | Example 1

In the above example, 50% border-radius is applied to all the corners.

1) border-radius property with one value

The property takes a single value to the border-radius and that value is applied to all the four corners and the corners are rounded equally.

Syntax:

Element {
    border-radius: 15px;
}

Example:

<!DOCTYPE html>

<html>

<head>
    <style>
        div {
            border: 2px solid red;
            padding: 10px;
            border-radius: 25px;
        }
    </style>
</head>

<body>
    <div>
        <p>Border Radius in CSS</p>
    </div>
</body>

</html>

Output

Border Radius Property in CSS | Example 2

In the above example, the border-radius of 25px is applied to all four sides equally.

2) border-radius property with two values

This property takes two values to the border-radius. The first value is applied to top-left and bottom-right corners, the second value is applied to top-right and bottom-left corners.

Syntax:

Element {
    border-radius: 15px 10px;
}

Example:

<!DOCTYPE html>

<html>

<head>
    <style>
        div {
            border: 2px solid red;
            padding: 10px;
            border-radius: 60px 30px;
        }
    </style>
</head>

<body>
    <div>
        <p>Border Radius in CSS</p>
    </div>
</body>

</html>

Output

Border Radius Property in CSS | Example 3

In the above example, the border-radius of 60px is applied to top-left and bottom-right and 30px is applied to top-right and bottom-left corners.

3) border-radius property with three values

This property takes three values to the border-radius. The first value is applied to the top-left corner and the second value is applied to top-right and bottom-left corners, and the third value is applied to the bottom-right corner.

Syntax:

Element {
    border-radius: 15px 10px 30px;
}

Example:

<!DOCTYPE html>

<html>

<head>
    <style>
        div {
            border: 2px solid green;
            padding: 10px;
            border-radius: 60px 30px 20px;
        }
    </style>
</head>

<body>
    <div>
        <p>Border Radius in CSS</p>
    </div>
</body>

</html>

Output

Border Radius Property in CSS | Example 4

In the above example, border-radius of 60px is applied to top-left corner, 30px is applied to top-right and bottom-left corners and 20px is applied to bottom-right corner.

4) border-radius property with four values

This property takes four values to the border-radius and applies four different values to each of the corners. The first value is applied to the top-left corner, the second value is applied to the top-right corner, the third value is applied to the bottom-right corner and the fourth value is applied to the bottom-left corner.

Syntax:

Element {
    border-radius: 15px 10px 20px 5px;
}

Example:

<!DOCTYPE html>

<html>

<head>
    <style>
        div {
            border: 2px solid green;
            padding: 10px;
            border-radius: 60px 30px 50px 10px;
        }
    </style>
</head>

<body>
    <div>
        <p>Border Radius in CSS</p>
    </div>
</body>

</html>

Output

Border Radius Property in CSS | Example 5

In the above example, 60px is applied to top-left corner, 30px is applied to the top-right corner, 50px is applied to bottom-right corner and 10px is applied to bottom-left corner of the box.







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