border-bottom-left-radius | CSS CSS Properties

Specifically rounds the bottom-left corner of an element. This is useful for creating unique shapes like speech bubbles or tabbed interfaces where only certain corners should be rounded.

Quick example

.speech-bubble {
  border-bottom-left-radius: 0;
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  border-bottom-right-radius: 20px;
}

Quick facts

Initial value

0

Inherited

Applies to

all elements (UAs not required when collapse)

Animation type

lpc

Values

length-percentage

border-bottom-left-radius Browser Support

Widely available Since 2015 96% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.

Safe to use without fallbacks.

View on caniuse.com → View on MDN → View on webstatus.dev → Learn more about Baseline →

12+