New CSS Property corner-shape Is Amazing
Web Dev Simplified
Mar 31, 2026
WebDev Simplified’s Kyle explains how the new 'corner-shape' property replaces complex SVG masks and 45-degree rotations with a single line of CSS. By leveraging values like scoop, bevel, and the super-ellipse function, developers can finally create intricate ticket stubs and speech bubbles natively. This shift transforms border design from a CSS hurdle into a precise, declarative tool.
Key insight: The super-ellipse function allows for dynamic animations between shapes by passing values from negative infinity to positive infinity, enabling effects like a 'twinkling star' without external assets.
