?let?styles?=?require('./popup.css')
?...
?this.tempContainer.innerHTML?=?`<h1?class=${styles.popup}>?Hello?world?</h1>`

{????????test:?/\.css$/,????????use:?[??????????'style-loader',??????????{????????????loader:?"css-loader",????????????options:?{??????????????modules:?{????????????????localIdentName:?'[path][name]__[local]--[hash:base64:5]'??????????????}????????????}??????????}????????],????????include:?[??????????path.resolve(__dirname,?'/src/components')????????]??????},