From the terminal type the following...
git clone https://github.com/david-reid/cwd-resize-session-js.git
On clone completion, project is ready to launch.
Once the zip file is downloaded. Extract the project to the desired folder.
On extraction, project is ready to run.
Launch a browser (preferably chrome). Hit [ctrl + o], browse to the project folder and open the index.html file.
The vanilla gameloop will load and run. Check the browsers console terminal to see the vanilla update and render messages.