yarn start
// or
yarn start:modile
yarn build
// or
yarn build:modile
<!-- build:css css/index.css -->
<link rel="stylesheet" href="./css/reset.css">
<link rel="stylesheet" href="./css/index.css">
<!-- endbuild -->
// output css/index.css
<!-- build:js js/index.js -->
<script src="./js/index.js" charset="utf-8"></script>
<!-- endbuild -->
// output js/index.js