Skip to content
postcss plugin px2rem
JavaScript Makefile
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
src
test
.babelrc
.eslintrc
.gitignore
.travis.yml
HISTORY.md
Makefile
README.md
index.js
package.json

README.md

postcss-plugin-px2rem

NPM version Build Status Coverage Status NPM downloads Dependency Status

postcss plugin px2rem.

Features

A plugin for PostCSS that generates rem units from pixel units.

Installation

$ npm i --save postcss-plugin-px2rem

Usage

input and output

// input
h1 {
  margin: 0 0 20px;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: 1px;
}

// output
h1 {
  margin: 0 0 0.2rem;
  font-size: 0.32rem;
  line-height: 1.2;
  letter-spacing: 0.01rem;
}

original

import { writeFile, readFileSync } from 'fs';
import postcss from 'postcss';
import pxtorem from 'postcss-plugin-px2rem';

const css = readFileSync('/path/to/test.css', 'utf8');
const options = {
  replace: false,
};
const processedCss = postcss(pxtorem(options)).process(css).css;

writeFile('/path/to/test.rem.css', processedCss, err => {
  if (err) throw err;
  console.log('Rem file written.');
});

with webpack

import px2rem from 'postcss-plugin-px2rem';
const px2remOpts = {
  ......
};
 
export default {
  module: {
    loaders: [
      {
        test: /\.css$/,
        loader: 'style-loader!css-loader!postcss-loader',
      },
    ],
  },
  postcss: [px2rem(px2remOpts)],
}

with atool-build

webpack.connfig.js

import webpack from 'atool-build/lib/webpack';
import px2rem from 'postcss-plugin-px2rem';

export default webpackConfig => {
  const px2remOpts = {
    ......
  };
  webpackConfig.postcss.push(px2rem(px2remOpts));

  return webpackConfig;
};

Configuration

Default:

{
  rootValue: 100,
  unitPrecision: 5,
  propWhiteList: [],
  propBlackList: [],
  exclude:false,
  selectorBlackList: [],
  ignoreIdentifier: false,
  replace: true,
  mediaQuery: false,
  minPixelValue: 0
}
  • rootValue (Number|Object) The root element font size. Default is 100.
    • If rootValue is an object, for example { px: 50, rpx: 100 }, it will replace rpx to 1/100 rem , and px to 1/50 rem.
  • unitPrecision (Number) The decimal numbers to allow the REM units to grow to.
  • propWhiteList (Array) The properties that can change from px to rem.
    • Default is an empty array that means disable the white list and enable all properties.
    • Values need to be exact matches.
  • propBlackList (Array) The properties that should not change from px to rem.
    • Values need to be exact matches.
  • exclude (Reg) a way to exclude some folder,eg. /(node_module)/.
  • selectorBlackList (Array) The selectors to ignore and leave as px.
    • If value is string, it checks to see if selector contains the string.
      • ['body'] will match .body-class
    • If value is regexp, it checks to see if the selector matches the regexp.
      • [/^body$/] will match body but not .body
  • ignoreIdentifier (Boolean/String) a way to have a single property ignored, when ignoreIdentifier enabled, then replace would be set to true automatically.
  • replace (Boolean) replaces rules containing rems instead of adding fallbacks.
  • mediaQuery (Boolean) Allow px to be converted in media queries.
  • minPixelValue (Number) Set the minimum pixel value to replace.

License

MIT

You can’t perform that action at this time.