CODE EXAMPLE FOR PHP

Compiling multiple CSS into ONE CSS with Laravel MIX

The solution was to import all the required css into one main css file, then use that inside the mix chain:

in app.css we import all of our css files

@import 'resources/css/plugin-1.css';
@import 'resources/css/plugin-2.css';


inside webpack.mix.js we use resource/app.css as an input

mix.styles([
'resources/app.css',
], output);