postcss-custom-selectors

Use Custom Selectors in CSS

v8.0.5 URL: https://unpkg.com/postcss-custom-selectors@8.0.5/dist/index.cjs

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postcss-custom-media

Use Custom Media Queries in CSS

v11.0.6 URL: https://unpkg.com/postcss-custom-media@11.0.6/dist/index.cjs

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at-rule atrule css csswg custom media postcss postcss-plugin queries query specification w3c

postcss-custom-properties

Use Custom Properties Queries in CSS

v14.0.6 URL: https://unpkg.com/postcss-custom-properties@14.0.6/dist/index.cjs

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css-vars-ponyfill

Client-side support for CSS custom properties (aka "CSS variables") in legacy and modern browsers

v2.4.9 URL: https://unpkg.com/css-vars-ponyfill@2.4.9/dist/css-vars-ponyfill.min.js

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@csstools/postcss-progressive-custom-properties

Correctly declare progressive enhancements for CSS Custom Properties.

v4.1.0 URL: https://unpkg.com/@csstools/postcss-progressive-custom-properties@4.1.0/dist/index.cjs

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