postcss-cssnext
Use tomorrow’s CSS syntax, today
Use tomorrow’s CSS syntax, today
List of known HTML tag names
Map of HTML elements to allowed attributes
List of known SVG tag names
Context management helper for the w3c traceparent header format
Provides the Nu Html Checker «vnu.jar» file
Map of SVG elements to allowed attributes
A W3C Standard XML DOM(Level2 CORE) implementation and parser(DOMParser/XMLSerializer).
jsdom without canvas 19.0.0
A minimalistic XPath 3.1 engine in JavaScript
A stylelint rule to disallow usage of unknown custom properties
A simple polyfill implementation of W3C's JavaScript Fullscreen API spec. Don't worry about the vendor specific Fullscreen API.
A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.
A JavaScript implementation of the DOM and HTML standards
A W3C Standard XML DOM(Level2 CORE) implementation and parser(DOMParser/XMLSerializer).
A JSON Object of all CSS font weight names mapped to their numeric value
W3C's Fullscreen API Polyfill
Use tomorrow's CSS syntax, today
A node.js module for using the w3c validator.
W3C File Reader API streaming interfaces