1.创建项目
①安装webpack打包工具:npm install webpack -g
②搭建vue脚手架:npm install -g vue-cli
③创建vue项目:vue init webpack "项目名称"
2.安装postcss-plugin-px2rem
npm i postcss-plugin-px2rem --save -dev
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3.在.postcssrc.js文件中进行配置
module.exports = { "plugins": { "postcss-import": {}, "postcss-url": {}, // to edit target browsers: use "browserslist" field in package.json "autoprefixer": {}, 'postcss-plugin-px2rem': { rootValue: 16, // 设计稿宽度的 1/10 propBlackList: ['border', 'border-top', 'border-left', 'border-right', 'border-bottom', ] // 不需要转换为 rem 单位的 CSS 属性 } } }
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4.找到config文件下的index.js
'use strict' // Template version: 1.3.1 // see http://vuejs-templates.github.io/webpack for documentation. const path = require('path') const Px2remWebpackPlugin = require('postcss-plugin-px2rem'); // 引入插件 module.exports = { dev: { // Paths assetsSubDirectory: 'static', assetsPublicPath: '/', proxyTable: {}, // Various Dev Server settings host: 'localhost', // can be overwritten by process.env.HOST port: 8080, // can be overwritten by process.env.PORT, if port is in use, a free one will be determined autoOpenBrowser: false, errorOverlay: true, notifyOnErrors: true, poll: false, // https://webpack.js.org/configuration/dev-server/#devserver-watchoptions- /** * Source Maps */ // https://webpack.js.org/configuration/devtool/#development devtool: 'cheap-module-eval-source-map', // If you have problems debugging vue-files in devtools, // set this to false - it *may* help // https://vue-loader.vuejs.org/en/options.html#cachebusting cacheBusting: true, cssSourceMap: true }, build: { // Template for index.html index: path.resolve(__dirname, '../dist/index.html'), // Paths assetsRoot: path.resolve(__dirname, '../dist'), assetsSubDirectory: 'static', assetsPublicPath: '/', /** * Source Maps */ productionSourceMap: true, // https://webpack.js.org/configuration/devtool/#production devtool: '#source-map', // Gzip off by default as many popular static hosts such as // Surge or Netlify already gzip all static assets for you. // Before setting to `true`, make sure to: // npm install --save-dev compression-webpack-plugin productionGzip: false, productionGzipExtensions: ['js', 'css'], // Run the build command with an extra argument to // View the bundle analyzer report after build finishes: // `npm run build --report` // Set to `true` or `false` to always turn it on or off bundleAnalyzerReport: process.env.npm_config_report }, rules: [ { test: /\.(css|less|scss)$/, use: [ 'style-loader', 'css-loader', 'postcss-loader', 'less-loader', ] } ], plugins: [ new Px2remWebpackPlugin({ rootValue: 16, // 设计稿宽度的 1/10 propBlackList: ['border', 'border-top', 'border-left', 'border-right', 'border-bottom', 'border-radius'] // 不需要转换为 rem 单位的 CSS 属性 }) ], }
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5.在src->utils->新建文件rem.js
// 基准大小 const baseSize = 16; // 设置 rem 函数 function setRem() { // 当前页面宽度相对于 1920 宽的缩放比例,可根据自己需要修改。 const scale = document.documentElement.clientWidth / 1920; // 设置页面根节点字体大小 document.documentElement.style.fontSize = baseSize * Math.min(scale, 2) + "px"; } // 初始化 setRem(); // 改变窗口大小时重新设置 rem window.onresize = function() { setRem(); };
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6.main.js中引入rem.js
import './utils/rem.js';
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