On Day 1, participants will be introduced to the basics of web development and how websites work. They will learn the difference between frontend, backend, and full stack development, and understand how a browser communicates with a server. The session will cover fundamental HTML tags, attributes, and semantic structure for creating webpages. Participants will also explore CSS for styling, including colors, fonts, spacing, the box model, and Flexbox basics. By the end of the day, they will be able to create and style a simple webpage using HTML and CSS.