The lecture was so fun and informative ^.^~ It was good to be able to learn how to actually use this kind of grammar (such as attribute selectors and objects in CSS) while making various examples with JavaScript. In particular, it was much easier and better to understand because he didn't just explain it by looking at the code, but also drew pictures (perspective part) and explained the 3D part (card flipping, last example) with a camera and paper. And when learning about flex, I remember the Odeng skewers and Odeng... I think I'll never forget it ㅎㅎ I highly recommend it to those who have just finished JavaScript and are thinking about interactive web or what they can do with JavaScript! I think it would be great if there were various classes that link interactive web or backend in the future. I really enjoyed the great lecture. Thank you!!