1.安装loader1.安装loader安装postcss-loader 和 autoprefixer下载：
cnpm install postcss-loader autoprefixer --save-dev
cnpm install postcss-loader autoprefixer --save-dev在webpack.config.js里面设置以下代码
test:/\.css$/,
use: ['style-loader','css-loader',{

loader: "postcss-loader",

options:{

plugins:[

require("autoprefixer")({

browsers: [

'ie >= 8',

'Firefox >= 20',

'Safari >= 5',

'Android >= 4',

'Ios >= 6',

'last 4 version'

]

})

]

}
}]
test:/\.css$/,
use: ['style-loader','css-loader',{

loader: "postcss-loader",

options:{

plugins:[

require("autoprefixer")({

browsers: [

'ie >= 8',

'Firefox >= 20',

'Safari >= 5',

'Android >= 4',

'Ios >= 6',

'last 4 version'

]

})

]

}
}]设置在网站上会发现以下解释补充知识：vue-cli 解决通过js import css无法自动加上浏览器前缀补充知识：补充知识：vue-cli 解决通过js import css无法自动加上浏览器前缀1.找到build/utils.js2.在exports.cssLoaders内添加如下代码
const postcssLoader = {

loader: 'postcss-loader',

options: {

sourceMap: options.sourceMap

}
}
const postcssLoader = {

loader: 'postcss-loader',

options: {

sourceMap: options.sourceMap

}
}
function generateLoaders (loader, loaderOptions) {

const loaders = [cssLoader]

if (loader) {

loaders.push({

loader: loader + '-loader',

options: Object.assign({}, loaderOptions, {

sourceMap: options.sourceMap

})

})

}

loaders.push(postcssLoader)

......
}
function generateLoaders (loader, loaderOptions) {

const loaders = [cssLoader]

if (loader) {

loaders.push({

loader: loader + '-loader',

options: Object.assign({}, loaderOptions, {

sourceMap: options.sourceMap

})

})

}

loaders.push(postcssLoader)

......
}3.在项目目录下也就是与node_modules同级目录下新建 .postcssrc.js (注意前面有个点) 添加如下代码
// https://github.com/michael-ciniawsky/postcss-load-config

module.exports = {
"plugins": {

"postcss-import": {},

"postcss-url": {},

// to edit target browsers: use "browserslist" field in package.json

"autoprefixer": {}
}
}

// https://github.com/michael-ciniawsky/postcss-load-config

module.exports = {
"plugins": {

"postcss-import": {},

"postcss-url": {},

// to edit target browsers: use "browserslist" field in package.json

"autoprefixer": {}
}
}
4.找到package.json文件添加如下代码 （注意：与devDependencies字段同级）
"browserslist": [

"last 10 Chrome versions",

"last 5 Firefox versions",

"Safari >= 6",

"ie > 8"
]
"browserslist": [

"last 10 Chrome versions",

"last 5 Firefox versions",

"Safari >= 6",

"ie > 8"
]5.安装如下依赖
npm install postcss-import --save-dev
npm install postcss-loader --save-dev
npm install postcss-url --save-dev
npm install autoprefixer --save-dev
npm install postcss-import --save-dev
npm install postcss-loader --save-dev
npm install postcss-url --save-dev
npm install autoprefixer --save-dev6.这时可以启动你的工程了 试试吧以上这篇vue自动添加浏览器兼容前后缀操作就是小编分享给大家的全部内容了，希望能给大家一个参考。