Big update!Introducing GitHub Bot Commands. Learn more
Log inBook a demo


Package Overview
File Explorer

Advanced tools


Using more intuitive `>=`, `<=`, `>`, `<` instead of media queries min/max prefix.


Version published
Weekly downloads
decreased by-14.72%

Weekly downloads



5.0.0 2021-01-12

  • Updated: Support for PostCSS v8+
  • Updated: Support for Node v10+



PostCSS Media Minmax

CSS Standard Status Build Status NPM Downloads NPM Version License

Writing simple and graceful media queries!

The min-width, max-width and many other properties of media queries are really confusing. I want to cry every time I see them. But right now according to the new specs, you can use more intuitive <= or >= to replace the min-/max- prefixes in media queries.

V2.1.0 began to support > or < symbol.

This is a polyfill plugin which supports CSS Media Queries Level 4 and gives you access to the new features right away. Mom will never worry about my study any more. So amazing!


Gif Demo


$ npm install postcss-media-minmax

Quick Start

Example 1:

var fs = require('fs') var postcss = require('postcss') var minmax = require('postcss-media-minmax') var css = fs.readFileSync('input.css', 'utf8') var output = postcss() .use(minmax()) .process(css) .css console.log('\n====>Output CSS:\n', output)

Or just:

var output = postcss(minmax()) .process(css) .css


@media screen and (width >= 500px) and (width <= 1200px) { .bar { display: block; } }

You will get:

@media screen and (min-width: 500px) and (max-width: 1200px) { .bar { display: block; } }

CSS syntax


<mf-range> = <mf-name> [ '<' | '>' ]? '='? <mf-value> | <mf-value> [ '<' | '>' ]? '='? <mf-name> | <mf-value> '<' '='? <mf-name> '<' '='? <mf-value> | <mf-value> '>' '='? <mf-name> '>' '='? <mf-value>


PostCSS Media Minmax hasn't implemented syntax such as 200px > = width or 200px < = width currently because its readability is not good enough yet.


The special values:

  • The value type is a positive (not zero or negative) followed by optional whitespace, followed by a solidus ('/'), followed by optional whitespace, followed by a positive . s can be ordered or compared by transforming them into the number obtained by dividing their first by their second .

    @media screen and (device-aspect-ratio: 16 / 9) { /* rules */ } /* equivalent to */ @media screen and (device-aspect-ratio: 16/9) { /* rules */ }
  • The value type is an with the value 0 or 1. Any other integer value is invalid. Note that -0 is always equivalent to 0 in CSS, and so is also accepted as a valid value.

    @media screen and (grid: -0) { /* rules */ } /* equivalent to */ @media screen and (grid: 0) { /* rules */ }

How to use


In Example 1, if a feature has both >= and <= logic, it can be written as follows:

@media screen and (500px <= width <= 1200px) { .bar { display: block; } } /* Or */ @media screen and (1200px >= width >= 500px) { .bar { display: block; } }

Which will output:

@media screen and (min-width: 500px) and (max-width: 1200px) { .bar { display: block; } }

Note: When the media feature name is in the middle, we must ensure that two <= or >= are in the same direction, otherwise which will not be converted.

E.g. in the example below, width is greater than or equal to 500px and is greater than or equal to 1200px, which is the wrong in both grammar and logic.

@media screen and (1200px <= width >= 500px) { .bar { display: block; } }

Media feature names

The following properties support the min-/max- prefixes in the specifications at present, and will be automatically converted by PostCSS Media Minmax.

  • width
  • height
  • device-width
  • device-height
  • aspect-ratio
  • device-aspect-ratio
  • color
  • color-index
  • monochrome
  • resolution

Using with @custom-media & Node Watch

var fs = require('fs') var chokidar = require('chokidar') var postcss = require('postcss') var minmax = require('postcss-media-minmax') var customMedia = require('postcss-custom-media') var src = 'input.css''Watching…\nModify the input.css and save.'), { ignored: /[\/\\]\./, persistent: true }).on('all', function(event, path, stats) { var css = fs.readFileSync(src, 'utf8') var output = postcss() .use(customMedia()) .use(minmax()) .process(css) .css; fs.writeFileSync('output.css', output) })


@custom-media --foo (width >= 20em) and (width <= 50em); @custom-media --bar (height >= 300px) and (height <= 600px); @media (--foo) and (--bar) { }


@media (min-width: 20em) and (max-width: 50em) and (min-height: 300px) and (max-height: 600px) { }


module.exports = function(grunt) { grunt.initConfig({ pkg: grunt.file.readJSON('package.json'), postcss: { options: { processors: [ require('autoprefixer-core')({ browsers: ['> 0%'] }).postcss, //Other plugin require('postcss-media-minmax')(), ] }, dist: { src: ['src/*.css'], dest: 'build/grunt.css' } } }); grunt.loadNpmTasks('grunt-contrib-uglify'); grunt.loadNpmTasks('grunt-postcss'); grunt.registerTask('default', ['postcss']); }


var gulp = require('gulp'); var rename = require('gulp-rename'); var postcss = require('gulp-postcss'); var selector = require('postcss-media-minmax') var autoprefixer = require('autoprefixer-core') gulp.task('default', function () { var processors = [ autoprefixer({ browsers: ['> 0%'] }), //Other plugin minmax() ]; gulp.src('src/*.css') .pipe(postcss(processors)) .pipe(rename('gulp.css')) .pipe(gulp.dest('build')) });'src/*.css', ['default']);


  • Install all the dependent modules.
  • Respect the coding style (Use EditorConfig).
  • Add test cases in the test directory.
  • Run the test cases.
$ git clone $ git checkout -b patch $ npm install $ npm test


  • Thank the author of PostCSS Andrey Sitnik for giving us such simple and easy CSS syntax analysis tools.

  • Thank Tab Atkins Jr. for writing the specs of Media Queries Level 4.

  • Thank ziyunfei for suggestions and help of this plugin.





What is postcss-media-minmax?

Using more intuitive `>=`, `<=`, `>`, `<` instead of media queries min/max prefix.

Is postcss-media-minmax popular?

The npm package postcss-media-minmax receives a total of 5,406,460 weekly downloads. As such, postcss-media-minmax popularity was classified as popular.

Is postcss-media-minmax well maintained?

We found that postcss-media-minmax demonstrated a not healthy version release cadence and project activity because the last version was released a year ago.It has 4 open source maintainers collaborating on the project.

Last updated on 12 Jan 2021

Did you know?

Socket installs a Github app to automatically flag issues on every pull request and report the health of your dependencies. Find out what is inside your node modules and prevent malicious activity before you update the dependencies.

Install Socket


Subscribe to our newsletter

Get open source security insights delivered straight into your inbox. Be the first to learn about new features and product updates.

  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc