我这边看挺清楚的啊
./components/public/header/topbar.vue?vue&type=style&index=0&lang=scss& (./node_modules/css-loader??ref--6-oneOf-1-1!./node_modules/vue-loader/lib/loaders/stylePostLoader.js!./node_modules/postcss-loader/src??ref--6-oneOf-1-2!./node_modules/sass-loader/lib/loader.js??ref--6-oneOf-1-3!./node_modules/vue-loader/lib??vue-loader-options!./components/public/header/topbar.vue?vue&type=style&index=0&lang=scss&)Module Warning (from ./node_modules/postcss-loader/src/index.js):Warning(28:3) start value has mixed support, consider using flex-start instead