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pixrem
Advanced tools
Readme
PostCSS plugin that generates pixel fallbacks for rem units.
npm install --save pixrem
Pixrem is a CSS post-processor that, given CSS and a root em value, returns CSS with pixel unit fallbacks or replacements. It's based on browser data so only needed fallbacks will be added. Basically, it's for IE8 or less, and for IE9 & IE10 in the font
shorthand property and in pseudo-elements.
'use strict';
var fs = require('fs');
var pixrem = require('pixrem');
var postcss = require('postcss');
var css = fs.readFileSync('main.css', 'utf8');
var processedCss = postcss([pixrem]).process(css).css;
fs.writeFile('main.with-fallbacks.css', processedCss, function (err) {
if (err) {
throw err;
}
console.log('IE8, you\'re welcome.');
});
Pixrem takes this:
.sky {
margin: 2.5rem 2px 3em 100%;
color: blue;
}
@media screen and (min-width: 20rem) {
.leaf {
margin-bottom: 1.333rem;
font-size: 1.5rem;
}
}
And returns this:
.sky {
margin: 80px 2px 3em 100%;
margin: 2.5rem 2px 3em 100%;
color: blue;
}
@media screen and (min-width: 20rem) {
.leaf {
margin-bottom: 1.333rem;
font-size: 1.5rem;
}
}
Type: Object | Null
Default: {rootValue: 16, replace: false, atrules: false, html: true, browsers: 'ie <= 8', unitPrecision: 3}
rootValue
the root element font size. Can be px
, rem
, em
, %
, or unitless pixel value. Pixrem also tries to get the root font-size from CSS (html
or :root
) and overrides this option. Use html
option to disable this behaviour.replace
replaces rules containing rem
s instead of adding fallbacks.atrules
generates fallback in at-rules too (media-queries)html
overrides root font-size from CSS html {}
or :root {}
browsers
sets browser's range you want to target, based on browserslistunitPrecision
control the significant digits after the decimal pointReport bugs and feature proposals in the Github issue tracker. Run tests with npm test
. In lieu of a formal styleguide, take care to maintain the existing coding style.
FAQs
A CSS post-processor that generates pixel fallbacks for rem units.
The npm package pixrem receives a total of 133,769 weekly downloads. As such, pixrem popularity was classified as popular.
We found that pixrem demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
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