postcss-px-to-rem

A plugin for PostCSS that generates rem from pixel units.

> refer to postcss-px-to-viewport

> use with lib-flexible-for-dashboard to develop flexible fullscreen dashbord.

Usage

If your project involves a fixed width, this script will help to convert pixels into rem.

$3

``css
// input

.class {
margin: -10px .5vh;
padding: 5vmin 9.5px 1px;
border: 3px solid black;
border-bottom-width: 1px;
font-size: 14px;
line-height: 20px;
}
.class2 {
border: 1px solid black;
margin-bottom: 1px;
font-size: 20px;
line-height: 30px;
}
@media (min-width: 750px) {
.class3 {
font-size: 16px;
line-height: 22px;
}
}

html, body {
background: red;
}

.test {
position: absolute;
margin: auto;
top: 0;
bottom: 0;
left: 0;
right: 0;
width: 1920px;
height: 1080px;
background: yellow;
}


// output

.class {
margin: -0.05208rem .5vh;
padding: 5vmin 0.04948rem 1px;
border: 0.01563rem solid black;
border-bottom-width: 1px;
font-size: 0.07292rem;
line-height: 0.10417rem;
}
.class2 {
border: 1px solid black;
margin-bottom: 1px;
font-size: 0.10417rem;
line-height: 0.15625rem;
}
@media (min-width: 750px) {
.class3 {
font-size: 0.08333rem;
line-height: 0.11458rem;
}
}

html, body {
background: red;
}

.test {
position: absolute;
margin: auto;
top: 0;
bottom: 0;
left: 0;
right: 0;
width: 10rem;
height: 5.625rem;
background: yellow;
}
`

$3

Default:
`js
{
unitToConvert: 'px',
widthOfDesignLayout: 1920,
unitPrecision: 5,
selectorBlackList: [],
minPixelValue: 1,
mediaQuery: false
};
`
- unitToConvert (String) unit to convert, by default, it is px.
- widthOfDesignLayout (Number) The width of the design layout. for pc dashboard, generally is 1920.
- unitPrecision (Number) The decimal numbers to allow the REM units to grow to.
- 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
- minPixelValue (Number) Set the minimum pixel value to replace.
- mediaQuery (Boolean) Allow px to be converted in media queries.

$3

`js
var gulp = require('gulp');
var postcss = require('gulp-postcss');
var pxtoviewport = require('postcss-px-to-viewport');

gulp.task('css', function () {

var processors = [
pxtoviewport({
viewportWidth: 320,
viewportUnit: 'vmin'
})
];

return gulp.src(['build/css/*/.css'])
.pipe(postcss(processors))
.pipe(gulp.dest('build/css'));
});
``