Full documentation is available at https://sheweichun.github.io/foxview.
http://w3c.github.io/webcomponents/spec/shadow/#dfn-destination-insertion-points
https://material-components.github.io/material-components-web-components/demos/index.html
From inside your project folder, run:
$ npm install foxviewTo install the web components polyfills needed for older browsers:
$ npm i -D @webcomponents/webcomponentsjs