https://aframe.io/ https://github.com/1000ch/lazyload-image

https://webkit.org/blog/7027/introducing-custom-elements/ https://developers.google.com/web/fundamentals/getting-started/primers/customelements https://www.w3.org/TR/custom-elements/

http://skate.js.org/ https://www.polymer-project.org/1.0/ http://x-tag.github.io/

https://github.com/webcomponents/custom-elements https://github.com/WebReflection/document-register-element