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CSS 'border-bottom-left-radius' Property Explained

  • Published
  • 2 min read
  • CSS
  • HTML
  • Web Design
CSS 'border-bottom-left-radius' Property
In this article
  1. CSS 'border-bottom-left-radius' Property Examples
  2. Browser Support For 'border-bottom-left-radius' Property
  3. CSS Syntax of the 'border-bottom-left-radius' Property
  4. Usage of the 'border-bottom-left-radius' Property
  5. Property Values of the 'border-bottom-left-radius' Property

Corrected . The browser-support table was rebuilt from MDN browser-compat-data (unprefixed support, desktop browsers), checked 3 October 2026. Editorial approval is still pending.

The CSS 'border-bottom-left-radius' property defines the radius of the curve at the bottom-left corner of an element's border. This property allows for the creation of rounded corners, enhancing the visual design of elements by softening or emphasizing their shape. It's particularly useful for designing user interface elements like buttons, cards, and dialog boxes that benefit from a less boxy appearance.

CSS 'border-bottom-left-radius' Property Examples

See the Pen CSS 'border-bottom-left-radius' Property by Webzstore (@webzstore) on CodePen.

The 'border-bottom-left-radius' property is a key tool in the CSS arsenal for creating visually appealing, rounded corner designs, enhancing the user experience through softer, more engaging element shapes.

Browser Support For 'border-bottom-left-radius' Property

Unprefixed support for the border-bottom-left-radius property (selected supported implementation, desktop browsers)
BrowserVersionReleased
Chrome4Jan 2010
Edge12Jul 2015
Firefox4Mar 2011
Safari5Jun 2010
Opera10.5Mar 2010

Source: MDN browser-compat-data 8.1.4, checked 3 October 2026. Prefixed support and implementations that were later removed are not counted, and some browsers list partial support or extra values. See the MDN reference for border-bottom-left-radius for the full compatibility details, including mobile browsers.

CSS Syntax of the 'border-bottom-left-radius' Property

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

Usage of the 'border-bottom-left-radius' Property

Use 'border-bottom-left-radius' when you want to specifically target and apply a rounded corner to the bottom-left corner of an element. This selective rounding can be used to create unique shapes and visual effects or to adhere to specific design languages that call for varied corner treatments across a single element.

Property Values of the 'border-bottom-left-radius' Property

  • Length: Specifies the radius of the curve using length units (e.g., px, em). This value determines the size of the rounded corner.
  • Percentage: Sets the radius as a percentage of the element's dimensions, allowing for scalable, responsive designs.
  • Initial: Resets the 'border-bottom-left-radius' to its default value, which is 0, resulting in a square corner.
  • Inherit: The element inherits the 'border-bottom-left-radius' value from its parent element.

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