Render

To start your Phoenix server:

Install dependencies with mix deps.get
Create and migrate your database with mix ecto.setup
Seed the database with mix run priv/repo/seeds.exs
Start Phoenix endpoint with mix phx.server or inside IEx with iex -S mix phx.server

Now you can visit localhost:4000 from your browser.

There are two links under Rendering Issue Demo, demonstrating both good rendering of state changes and poor rendering
The files to compare arelib/render_web/templates/live/page_classes.html.heex, lib/render_web/templates/live/page_render.html.heex and the associated LiveComponents that they reference