CSS Declaration Sorter
A Node.js module and PostCSS plugin to sort CSS declarations based on their property names. Ensuring the CSS is organized, more consistent and in order… Besides, sorted CSS is smaller when gzipped because there will be more similar strings. The intention of this module is to sort the source CSS code of a project in the build process. Check out the Atom package for individual usage.
Alphabetical example
Input:
body {display: block;
animation: none;
color: #C55;
border: 0;
}
Output:
body {animation: none;
border: 0;
color: #C55;
display: block;
}
Niceness
- Up-to-date CSS properties fetched from the MDN Web Platform.
- Sort using your own defined order.
- Nested rules sorting support.
- Less and SCSS support when combined with either postcss-scss or postcss-less.
- Thought-out sorting orders out of the box, approved by their authors.
Sorting orders
Alphabetically
alphabetically
Default, ordering in a simple alphabetical manner from a - z.SMACSS
smacss
Ordering from most important, flow affecting properties, to least important properties.- Box
- Border
- Background
- Text
- Other
Concentric CSS
concentric-css
Starts outside the box model, moves inward.- Positioning
- Visibility
- Box model
- Dimensions
- Text
Custom order
Provide your own order by passing the location of a JSON file containing an array.
Usage
npm install css-declaration-sorter --save-dev
CLI
This module does not include its own CLI but works with the official
PostCSS CLI. To use
the examples below, install postcss-cli
or prefix with
npx
.
Piping out result from file:
postcss input.css --use css-declaration-sorter | cat
Sorting multiple files by overwriting:
postcss *.css --use css-declaration-sorter --replace --no-map
Vanilla JS
const fs = require('fs');
const postcss = require('postcss');
const cssDeclarationSorter = require('css-declaration-sorter');
postcss([cssDeclarationSorter({order: 'smacss'})])
.process(fs.readFileSync('some.css'))
.then(function (result) {
.writeFileSync('some.css', result.css);
fs; })
Gulp
const gulp = require('gulp');
const gulpPostcss = require('gulp-postcss');
const cssDeclarationSorter = require('css-declaration-sorter');
.task('css', function () {
gulpreturn gulp.src('some.css')
.pipe(gulpPostcss([cssDeclarationSorter({order: 'smacss'})]))
.pipe(gulp.dest('./'));
; })
See PostCSS documentation for more examples and other environments.