I've had some success with Custom Elements, using skate.js as a higher level interface. This piano keyboard element: https://micahscopes.github.io/all-around-k

I've had some success with Custom Elements, using skate.js as a higher level interface. This piano keyboard element: https://micahscopes.github.io/all-around-keyboard/ https://micahscopes.github.io/all-around-keyboard/ Some elements for quickly drawing graphs in html: https://micahscopes.github.io/tangled-web-components/examples/ https://micahscopes.github.io/tangled-web-components/example... (It still needs some more convenient ways of defining the graph structure, as well as an interface to do force layouts.) I haven't worked on either project in a while. I kinda got tired working with the development version of skate.js while the custom elements spec was changing so fast. It's an excellent library, but things were moving too quickly for me to keep up. Today, I'd probably just do it in plain javascript, since the spec is more stable now.