JSS is an authoring tool for CSS which allows you to use JavaScript to describe styles in a declarative, conflict-free and reusable way.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
React is an open-source JavaScript library for building user interfaces or UI components.
A modest JavaScript framework for the HTML you already have.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.