A simple Hello World for LitElement.
npm install -g polymer-cli
git clone https://github.com/kevinLB/effy-start-element
cd effy-start-element
npm install
polymer serve
git clone https://github.com/kevinLB/effy-start-element
npm install -g polymer-cli
cd effy-start-element
npm install
polymer serve
Build your project and serve the build locally:
polymer build
polymer serve build/default
If you changed significant stuff (e.g. filenames, folder structure, installed other modules, etc), edit your polymer.json file to configure your build correctly. See the Polymer CLI documentation for more info.