layout title slogan callToActionItems reasons layout-home API Viewer Element Document your Web Components text href Get started /docs/guide/intro/ text href Examples /docs/examples/api-viewer/ header image link alt Docs /_assets/docs.png /docs/examples/api-docs/ Example of properties documentation header image link alt Demo /_assets/demo.png /docs/examples/api-demo/ Component rendered in the demo UI header image link alt Knobs /_assets/knobs.png /docs/guide/using-demo/#knobs Knobs for setting properties header image link alt Code /_assets/snippet.png /docs/guide/using-demo/#source Expansion panel code snippet