JSPM

Detect whether a terminal supports color

Detect whether the terminal supports Unicode

Fela plugin to replace named keys

CSS.supports() shim

Fela plugin to resolve responsive array values

Detect whether a terminal or browser supports ansi colors.

Terminal Environment Utilities

Merge duplicate CSS media query and other at-rule rules together.

A tiny color library

Detect whether $PAGER supports color

PostCSS plugin adding "@supports not" support for IE 11

check if unicode is supported

A list of tests to determine whether a CSS @supports rule is considered a browser hack

A JavaScript polyfill for CSS if() functionality with style(), media(), and supports() functions

Lightning CSS plugin for transforming CSS if() functions to native CSS

A JavaScript polyfill for CSS Custom Function functionality with style(), media(), and supports() functions

PostCSS plugin for transforming CSS if() functions to native CSS

JavaScript module to check if the device is retina or not.

PostCSS plugin adding support for the `:ie11` pseudo-class targetting IE 11 only

Checks if a certain css feature is supported by the running browser.

Detect whether a terminal supports color

Execute the command only if you are running on a supported version of Node and platform

A complex string based CSS managment library

support checks for the browser and node.js

Refactored supports-color code to support both CommonJS (CJS) and ES Modules (ESM) with mixed exports.

Check if your browser has support for date inputs.

'A Postcss plugin that fallbacks your CSS variables with native support'

> Let you know whether the terminal supports Unicode or not

Helper mixins for using Modernizr.js test classes in Stylus

PostCSS plugin for transforming CSS Custom Function functions to native CSS

Detect whether a terminal supports color

A simple, light, modern, universal JavaScript router

List of platforms supported by Node.js

Check if a browser supports local storage.

CSS postprocessing: group supports

A specialized parser for CSS @supports conditions, designed to enhance stylelint plugins by intelligently evaluating feature-detected code blocks

detect javascript environment features

Detect whether a terminal supports color

Detect whether the terminal supports unicode

CSS postprocessing: group supports