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postcss-viewport-convert
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Readme
A plugin for PostCSS that generates viewport units (vw, vh, vmin, vmax) from pixel units.
If your project involves a fixed width, this script will help to convert pixels into viewport units.
// 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;
}
}
// output
.class {
margin: -3.125vw .5vh;
padding: 5vmin 2.96875vw 1px;
border: 0.9375vw solid black;
border-bottom-width: 1px;
font-size: 4.375vw;
line-height: 6.25vw;
}
.class2 {
border: 1px solid black;
margin-bottom: 1px;
font-size: 6.25vw;
line-height: 9.375vw;
}
@media (min-width: 234.375vw) {
.class3 {
font-size: 5vw;
line-height: 6.875vw;
}
}
'use strict';
var fs = require('fs');
var postcss = require('postcss');
var pxToViewport = require('..');
var css = fs.readFileSync('main.css', 'utf8');
var options = {
replace: false
};
var processedCss = postcss(pxToViewport(options)).process(css).css;
fs.writeFile('main-viewport.css', processedCss, function (err) {
if (err) {
throw err;
}
console.log('File with viewport units written.');
});
Default:
{
unitToConvert: 'px',
viewportWidth: 320,
viewportHeight: 568, // not now used; TODO: need for different units and math for different properties
unitPrecision: 5,
viewportUnit: 'vw',
fontViewportUnit: 'vw', // vmin is more suitable.
selectorBlackList: [],
minPixelValue: 1,
mediaQuery: false
}
unitToConvert
(String) unit to convert, by default, it is px.viewportWidth
(Number) The width of the viewport.viewportHeight
(Number) The height of the viewport.unitPrecision
(Number) The decimal numbers to allow the REM units to grow to.viewportUnit
(String) Expected units.fontViewportUnit
(String) Expected units for font.selectorBlackList
(Array) The selectors to ignore and leave as px.
['body']
will match .body-class
[/^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.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'));
});
FAQs
A CSS post-processor that converts px to viewport units (vw, vh, vmin, vmax).
The npm package postcss-viewport-convert receives a total of 0 weekly downloads. As such, postcss-viewport-convert popularity was classified as not popular.
We found that postcss-viewport-convert demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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