A lecture I would like to recommend to developers who want to know the role of CSS! This lecture will not teach you all the functions and roles of CSS. However, if you are a developer, in other words, I am not a publisher or a web designer who handles code, so you do not need to know how to code with CSS, but if you are in a position where you need to know what CSS is and what its role is, I strongly recommend you take this lecture. It was a lecture that was more than enough to enlighten you on the general way CSS works and its role. On the other hand, if you are someone who needs to handle and learn CSS directly, I recommend that you take Lee Going's lecture "From the Basics of CSS to Utilization" before taking this lecture. I have no doubt that everyone who works hard for self-development even on weekends and after work will be living a better life today than today when you are taking this lecture. Cheer up!