minesweeper/webpack.config.js

module.exports = {
    module: {
        rules: [{
            test: /\.s[ac]ss$/i,
            use: [
                // Creates `style` nodes from JS strings
                "style-loader",
                // Translates CSS into CommonJS
                "css-loader",
                // Compiles Sass to CSS
                "sass-loader",
            ],
        }, ]
    }
};