Fylo dark theme landing page || Responsive || Mobile first

I need some help on these issues:

• What is the best approach/way to make the background pattern pixel perfect as shown on the design?
• The z-index is not working on the 'quote' in the review section. How to fix it?
• Is there a way to animate the bottom part (when visible) with only JavaScript? Or do I need some libraries/frameworks?

I tried to make it close to the design. Yet I might miss out on many things or do wrong in some parts. Please let me know if you notice. Thanks in advance :)