Px-Login is a Predix Experience ('Px') component
From the component's directory...
$ npm install
$ bower install
$ grunt sass
From the component's directory
$ grunt depserve
Starts a local server. Navigate to the root of that server (e.g. http://localhost:8080/) in a browser to open the API documentation page, with link to the "Demo" / working examples.
Does this component have runtime configuration options? If so, they should be able to be passed as attributes on the element with examples shown below.
What is the public API of this component?
Documented CSS extension points?
See Polymer composition patterns