[Vuejs]-How to add vue-style-loader dependency in vue.js

1: Add stylus-loader as a dev dependency by executing the following command

npm install stylus stylus-loader --save-dev

2: Add the stylus rule to the webpack config

Locate the webpack.base.conf.js in the build folder and add the following rule

module: {
  rules: [
    {
      test: /\.styl$/,
      loader: ['style-loader', 'css-loader', 'stylus-loader']
    }
  ]
}