border-start-end-radius

The logical way to round the corner where the 'start' of the block (top) meets the 'end' of the inline dimension (right in LTR). It adapts to writing mode changes automatically.

Quick example

.logical-card {
  /* Rounds the logical top-right corner */
  border-start-end-radius: 20px;
  background: #fff;
}

Quick facts

Initial value
0
Inherited
No
Applies to
all elements (UAs not required when collapse)
Animation type
lpc

Values

border-top-left-radius

border-start-end-radius Browser Support

Widely available Since 2021 95% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2021.

Safe to use without fallbacks.

89+
66+
15+
89+
ESC