This repo goes with the Build your first Polymer element tutorial.

You'll need to install some command-line tools to manage dependencies and to run the demo.

1. Download and install Node version 6.x or 7.x from https://nodejs.org/. Node includes the node package manager command, npm.

2. Install bower and the Polymer CLI:

   npm install -g bower polymer-cli
   

3. Clone this repo:

   https://github.com/PolymerLabs/polymer-2-first-element.git
   

4. Change directory to your local repo and install dependencies with bower:

   cd polymer-2-first-element
   bower install
   

5. To preview your element, run the Polymer development server from the repo directory:

   polymer serve
   

   Open localhost:8080/components/icon-toggle/demo/ in your browser. (Note that the path uses icon-toggle—the component name listed in this element's bower.json file—rather than the actual directory name.)