Build zero-JS floating label form inputs using CSS :focus and :placeholder-shown peer 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.
Enter placeholder label text and choose accent focus colors.
Click and type in the preview stage to test the smooth floating label elevation.
Copy the peer sibling markup and stylesheet rules into your frontend project.
They leverage the :not(:placeholder-shown) and :focus CSS pseudo-classes to conditionally elevate and scale the sibling <label> element.
Yes, the generated peer-focus and peer-not-placeholder-shown modifier classes integrate seamlessly with Tailwind CSS.
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