I wrote a Mortgage calculator web app, suitable for use with Mobile devices, using my Super Duper Pythonic language. It makes it easy to build rubbery user interfaces that adapt to the device size by specifying things using proportions when possible. Keeps things legible without fussing over measurements. App is at http://voicecarrier.com/lab/calc/calc.html, source code is at I couldn't stand how complex the web is to build for, especially when you want to make things legible. The key strategy for simplification is to make the layout and rendering part of the language, and having all subdivision of the screen be executable statements that can be put into loops and conditional clauses, making the entire page layout programmatic as opposed to static, which is the great flaw of HTML.

Isn't that something liveview solves? Now available in many languages beyond Elixir.