Editor's draft repository for CSS Houdini specifications, defining low-level APIs that expose CSS engine internals to developers.
This repository contains the official editor's drafts for the CSS Houdini specifications, which define a set of low-level APIs that give developers direct access to the CSS engine's internals. These specifications enable developers to extend CSS with new features, create custom layout and painting behaviors, and improve performance through more efficient styling techniques.
background-image and border-image using JavaScript.Houdini aims to make CSS more extensible by providing developers with the same low-level capabilities that browser engineers use to implement CSS features, enabling innovation while maintaining performance and compatibility.
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APIs like Paint and Layout enable programmatic image generation and custom layouts, giving developers low-level control akin to browser implementers, as described in the specifications.
Animation Worklet allows animations to run off the main thread, reducing jank for scroll-linked and complex effects, aligning with Houdini's goal of improving performance.
Properties and Values API supports registering custom CSS properties with type checking and inheritance, minimizing errors from string-based CSS, per the spec details.
Houdini aims to make CSS more extensible by exposing engine internals, enabling innovation beyond standard features, as outlined in its philosophy.
Specifications are editor's drafts with frequent changes and limited browser support, making them risky for production; the README references 'Is Houdini Ready Yet?' for status.
Requires deep CSS and JavaScript knowledge, plus polyfills for unsupported browsers, adding overhead compared to standard CSS solutions.
Being experimental, documentation and community examples are limited, with reliance on draft specs and mailing lists for guidance, as noted in the README.