T. Afif @ CSS Challenges on X: "Here is my idea for the inverted border- radius layout 👇 Demo: https://t.co/K2bEn6PRof via @CodePen Using mask to have transparency. A minimal HTML with no pseudo-element
Creating Stylish Inverted Border Radius Cards with HTML and CSS | Web Design Tutorial" - YouTube
Preview corner-shape, before implementations! • Lea Verou
CSS - Inverted border radius to draw a rounded corner - Stack Overflow