CSS border-bottom-left-radius Property

The border-bottom-left-radius specifies the round shape of the bottom left corner of the element. There exist three kinds of shapes: a circle or an ellipse, if you not use any value, the corner is square. If you use background image or color, it will be clipped at the border. The process of clipping is defined by the value of background-clip property.

The border-bottom-left-radius property has two values: length and percentage. When only one value is given, it specifies both horizontal and vertical radii of the ellipse. If two values are given, the first value sets the horizontal radius and the second value sets the vertical radius.

Percentages for the horizontal radius refer to the width of the box, percentages for the vertical radius refer to the height of the box. Negative values are not allowed.

Initial Value 0
Applies to All elements. It also applies to ::first-letter.
Inherited No.
Animatable Yes. The radius of the bottom left border is animatable.
Version CSS3
DOM Syntax object.style.borderBottomLeftRadius = "35px";

Syntax

border-bottom-left-radius: length| % | initial | inherit;

Example

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      div {
      height: 40px;
      background: #1c87c9;
      border: 4px solid #000000;
      border-bottom-left-radius: 25px;
      }
    </style>
  </head>
  <body>
    <h2>Border-bottom-left-radius example.</h2>
    <div></div>
  </body>
</html>

Try another example which contains two value.

Example

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      div {
      height: 40px;
      background: #666;
      border: 4px solid #000000;
      border-bottom-left-radius: 30px 15px;
      }
    </style>
  </head>
  <body>
    <h2>Border-bottom-left-radius example.</h2>
    <div></div>
  </body>
</html>

See an example which is specified by percentages.

<!DOCTYPE html>
<html>
  <head>
    <style> 
      div {
      border: 2px solid blue;
      background-color: #666;
      padding: 10px;
      border-bottom-left-radius: 50%;
      }
    </style>
  </head>
  <body>
    <h2>Border-bottom-left-radius example.</h2>
    <div></div>
  </body>
</html>

Values

Value Description
length Specifies rounding of the bottom-left corner by "px".
% Specifies the rounding of the bottom-left corner in percentage.
initial Sets the property to its default value.
inherit Inherits the property from its parent element.

Related resources

Border, border-radius, border-top, border-bottom, border-left, border-right, border-top-right-radius, border-top-left-radius, border-bottom-right-radius, background-clip.




Related articles