Generate diagonal corner ribbons and promotional sale badges with pure CSS transforms.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Select Top-Left, Top-Right, Bottom-Left, or Bottom-Right corner placement.
Enter badge text, pick background and font colors, and adjust ribbon width.
Copy the self-contained CSS stylesheet snippet into your web project.
They use an overflow: hidden wrapper container combined with absolute positioning and a 45-degree CSS rotate() transform.
Yes, because the ribbon is positioned relative to its parent container, it automatically scales and stays pinned to the card corner.
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