using webpack3 to compress css files does not work. Css files can be separated normally
{
test: /\.(less|css)$/,
use: ExtractTextPlugin.extract({
fallback: "style-loader",
use: [{
loader: "css-loader",
options: {
minimize: true//css
}
}, {
loader: "postcss-loader"
},{
loader:"less-loader"
}]
})
}