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
0Inherited
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+