Create zero-JavaScript accessible tooltips using data attributes and pseudo-elements.
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.
Choose top, bottom, left, or right positioning.
Set background color, text color, and corner radius.
Copy the stylesheet rules and apply data-tooltip="..." to any HTML tag.
They use content: attr(data-tooltip) in pseudo-elements to read attribute values directly.
No, all transitions and visibility toggles operate purely on CSS :hover.
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