GSAP not firing Javascript animations in Articulate Storyline when publishing

Hi, I'm new to Javascript and doing my first test animation (very basic)  with GSAP code and failing miserably. I am following Learnomancer's Youtube video but I cannot see what I am doing wrong (checked umpteen times) or if there is any code missing. I understand the principles of GSAP. Also, I am running parallels on a Mac. Can someone point me in the right direction please. Thank you!