React Full Course - Lesson 4 (React 19, 2025) CSS with React, Hooks, Finish the Chatbot Project

In lesson 4 of this React Course, we learn CSS with React, Hooks like useEffect and useRef, and finish the Chatbot Project. At 0:00 we review CSS and style the button and textbox. At 13:43 we create the layouts. At 26:55 we style the chat messages. At 38:57 we move the textbox to the bottom. At 51:58 we cover hooks, useEffect, and useRef. At 1:03:58 we conclude and provide exercises. At 1:06:10 we discuss next steps.