Demo: https://cermati-landing.herokuapp.com
Styling using sass compiled into css stored on /styles folder.
Animation logic and storage management is stored inside index.js file
The index site is stored inside index.html
All images and icons is stored inside /assets folder
If you see on *.scss files for background-color property is defined raw and not from variable. It is because I found it for only background-color property, variable is not compiled properly.
Kindly ignore index.php as it is only to make deployment on heroku works.