src/app.js and put the following in it.App component. So let's create it! Create a file at src/components/App.js and put the following in it.index.html file that we are including in our app.js file. Create a file at src/index.html and put the following in it.style tag to help with the sizing of some elements. In the body, we are adding our container element and our main app bundle.webpack.config.js and put the following in it.app.js file and tell everything to output to a build directory. We run all HTML files though the file loader. This essentially just moves the file to our build directory. Also, we run our JS files through the babel loader to make sure they are transpiled to code that most browsers these days understand. Lastly, we are including a plugin that will give us pretty output in the console..babelrc file to configure babel.package.json file in the scripts section.