I surprisingly prepared for 10 days,, and I didn't know what parent elements and child elements were even though I learned it once in school. I studied for about 80 hours in 10 days, and honestly, I thought a lot about giving up,, I didn't cry, but my mind was crying,,ㅎ So I took the test once this year, and ended up passing with a score of 82ㅎㅎ Honestly, I thought throughout the test that I would have failed if you hadn't explained it so easily. Please explain it that easily and in detail. I really liked that you started with the concepts..(I know Photoshop pretty well, and I could tell from the way you explained Photoshop's functions one by one. I thought that Photoshop is this good, but coding is really explained in detail.) Anyway, you are my savior. I hope you live long and prosper with coding, Mr. Seon. Reallyㅠ