The core technologies that are utilised in web development are CSS (Cascading Style Sheets), HTML (Hypertext Markup Language) and JavaScript.

Javascript frameworks are reusable, pre-written code libraries that offer developers a structured manner to build web applications. They present a host of tools and utilities to streamline some tasks, such as data binding, event handling, and DOM manipulation. Frameworks such as Vue.js, Angular, and React have become important elements of modern web development. This allows developers to create responsive, dynamic user interfaces in a more efficient manner.

Flexbox and CSS Grid are layout systems in CSS that present different approaches to creating flexible and responsive layouts. CSS grid is great for two-dimensional layouts, which permit developers to define columns and rows and place products in grid cells. On the other hand, Flexbox is made for one-dimensional layouts, offering a highly flexible way to both distribute and align things along a single axis. This can be either vertically or horizontally. Usually, CSS Grid is selected for grid-based, complex layouts, whereas Flexbox is appropriate for flexible and simpler layouts.

Serverless architecture comes as a cloud computing model. This is where a cloud provider dynamically manages the scaling and allocation of a host of resources. This allows developers to better focus on writing code, and they do not have to worry about server management. Throughout web development, it is a serverless architecture that lets developers both deploy and build applications in an efficient and quick manner since they can leverage cloud services to tackle a host of activities. These include file storage, authentication, and database management without managing servers or provisioning.