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To be able to use CSS in your webpack app, you need to set up a new loader. Out-of-the-box, webpack only understands Javascript and JSON. With a loader, you can translate another type of file to a format that webpack understands and can work with. There are many webpack loaders and each loader has a specific purpose.
Loaders are the node-based utilities built for webpack to help webpack to compile and/or transform a given type of resource that can be bundled as a javascript module. css-loader is the npm module that would help webpack to collect CSS from all the css files referenced in your application and put it into a string.
By default, Webpack will inline your CSS as Javascript tags that injects the CSS into the page. This sounds strange but it lets you do hot reloading in development. In production you extract them to a file using the ExtractTextPlugin, and require it with a normal link tag.
By default, the style-loader inlines the compiled css into your bundle, which are added to the head of the page with the output file e.g. bundle.js. Using the extract-text-webpack-plugin you can remove the compiled css from the bundle, and export it to a separate file.
First - wrap your loader in the plugin:
loaders: [{
test: /\.scss$/,
loader: ExtractTextPlugin.extract(
"style",
"css!sass")
}]
},
Then tell the plugin what to call the file it generates:
plugins: [
new ExtractTextPlugin("app.css")
]
Include this file in your HTML normally.
If you want a separate CSS file when using Webpack, you need to use the extract-text-webpack-plugin.
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