PostCSS一种更优雅、更简单的书写CSS方式_html/css_WEB-ITnose

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Release: 2016-06-24 11:37:45
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Sass团队创建了Compass大大提升CSSer的工作效率,你无需考虑各种浏览器前缀兼,只需要按官方文档的书写方式去写,会得到加上浏览器前缀的代码,如下:

.row {  @include display-flex;}
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会得到如下代码:

.row {  display: -webkit-flex;   display: flex;}
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但是, 做为一个长期用原生CSS书写方式的CSSer,不太习惯去官方查文档,再以@include方式书写。

那么问题来了,我只能放弃高效率方式么?
其实不然, Autoprefixer能够帮助你。
其实, Autoprefixer也仅仅是PostCSS其一个最出名的插件。
来吧, 来看张图:

这样,以一种原生CSS的书写方式, 然后还可以帮你解决浏览器前缀、IE兼容、以下一代CSS书写方式兼容现在浏览器, 是不是很酷?

哦, 其实应该说更简单、更优雅, 不用查文档, 不用@include。
这个就是Twitter推出的postcss, 据说Google、阿里、Shopify, Twitter就不用说了。

下面看下PostCSS一些基本使用方法:

准备

构建工具为Gulp
基于PostCSS
PostCSS插件 CSSNext 用下一代CSS书写方式兼容现在浏览器
PostCSS插件 Autoprefixer 为CSS补全浏览器前缀
PostCSS插件 CSS Grace 让CSS兼容旧版IE

package.json

{  "name": "postcss usage",  "version": "1.0.0",  "description": "postcss cssnext",  "main": "gulpfile.js",  "dependencies": {    "autoprefixer": "^5.2.0",    "autoprefixer-core": "^5.2.1",    "cssgrace": "^2.0.2",    "gulp": "^3.9.0",    "gulp-less": "^3.0.3"  },  "devDependencies": {    "autoprefixer": "^5.2.0",    "autoprefixer-core": "^5.2.1",    "cssgrace": "^2.0.2",    "cssnext": "^1.8.4",    "gulp-postcss": "^6.0.0",    "postcss": "^4.1.16"  },  "scripts": {    "test": "echo \"Error: no test specified\" && exit 1"  },  "keywords": [    "postcss",    "gulp"  ],  "author": "givebest",  "license": "ISC"}
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gulpfile.js

var gulp = require('gulp');var postcss = require('gulp-postcss');var autoprefixer = require('autoprefixer');var cssgrace  = require('cssgrace');var cssnext  = require('cssnext');gulp.task('css', function () {    var processors = [        autoprefixer({browsers: ['last 3 version'],        	cascade: false,        	remove: false    	}),        cssnext(),        cssgrace    ];    return gulp.src('./src/css/*.css')        .pipe(postcss(processors))        .pipe(gulp.dest('./dist'));});gulp.task('watch', function(){	gulp.watch('./src/css/*.css', ['css']);});gulp.task('default', ['watch', 'css']);
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安装

npm install

使用

gulp

详细项目地址在: https://coding.net/u/givebest/p/postcss-usage/git

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