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
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
}
}
}
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
})
],
}
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();
};
6.main.js中引入rem.js
import './utils/rem.js';