A TypeScript superset that favors more types and less typing

</> htmx - high power tools for HTML

Sustainable Web Design Community Group

Custom elements (web components) for making audio and video player controls that look great in your website or app.

Web Components community group

HTTP Buttons, PUT/DELETE Forms, and Partial Page Replacement - three proposals for the HTML standard

Web Sustainability Guidelines (WSG)

CSS library based on Counter Strike 1.6 UI.

Specification for the LargestContentfulPaint API

GitHub's Web Component collection.