This portfolio creation course using GSAP's ScrollTrigger feature was really excellent. The course was very systematic and easy to understand, and it covered the various functions and utilization of ScrollTrigger in depth. In particular, the practical exercises based on real projects showed the connection between theory and practice well. The instructor explained the technical content easily, and the answers to questions were very kind and clear. Through this course, I was able to learn how to apply unique and powerful interactive effects necessary for portfolio creation. I highly recommend it to anyone who wants to take their skills as a web developer or designer to the next level!