Beyond `border-radius`: What The CSS `corner-shape` Property Unlocks For Everyday UI

This article introduces the CSS corner-shape property, a companion to border-radius that enables beveled, scooped, notched, and squircle corners without hacks.

• •Accepted values include round, squircle, bevel, scoop, notch, square, and the superellipse() function with a numeric parameter for fine-grained control
• •Unlike clip-path workarounds, corner-shape correctly applies to borders, box shadows, outlines, and backgrounds
• •As of March 2026, corner-shape is supported only in Chrome 139+ and Chromium-based browsers
• •The article recommends progressive enhancement using @supports (corner-shape: bevel) with a @layer structure to provide a graceful baseline
• •Practical demos cover product card ribbon badges, button and tag libraries, and testimonial cards using per-corner combinations like round bevel bevel round