vue-cli configures mobile adaptation and converts px to rem

1. Download lib-flexible through npm

npm install lib-flexible  --save

2. Introduce lib-flexible in main.js

import 'lib-flexible/flexible.js'

3. Set the device width and zoom ratio by setting the meta tag

<meta name="viewport" content="width=device-width, initial-scale=1.0">

4. Install px2rem-loader

npm install px2rem-loader

5. Configure px2rem-loader

Find the file util.js in bulid, add px2rem-loader to cssLoaders,

const cssLoader = {
    loader: 'css-loader',
    options: {
      minimize: process.env.NODE_ENV === 'production',
      sourceMap: options.sourceMap
    }
  }
  const px2remLoader = {
    loader: 'px2rem-loader',
    options: {
      remUnit: 75
    }
  }

Then in this file, add px2remLoader in the generateLoaders method,

function generateLoaders (loader, loaderOptions) {
    const loaders = [cssLoader,px2remLoader]
    if (loader) {
      loaders.push({
        loader: loader + '-loader',
        options: Object.assign({}, loaderOptions, {
          sourceMap: options.sourceMap
        })
      })
    }

6. Restart, run the project,

npm run dev

Write the unit in the component directly write px and then check in the browser to see that the unit is rem