I have taken a UI-related course at another institution. At the time, I focused more on jQuery than JavaScript, so I thought JavaScript would be difficult, but after taking the course, I was surprised to find out that it was possible to do it with just JavaScript. I was also very satisfied with the fact that the functions and properties of CSS3 were organized more systematically. I also really liked the fact that they reviewed it in the middle of the lecture so that I wouldn't forget it. I was really satisfied. If you release another course, I think I'll take it right away! ㅎㅎ