The article mentioned a redesign issue with t he site. I got curious, never been a user of the site, so I went to the login screen, saw the "play" button in th

The article mentioned a redesign issue with t he site. I got curious, never been a user of the site, so I went to the login screen, saw the "play" button in the corner, and pressed it. The animation is nothing special, just using scaling I think to make baloons look like they are moving... But whoa, how I felt sick looking at it. And I have no clue why, tested a couple more times, press play, get sick, stop animation, I feel fine... The contrast looks fine-ish to me, the drawings are fine, there is nothing flashing, yet as soon I see the baloons becoming big and small repeateadly, I get sick. I am a designer, so now I am very, VERY curious about how that happened, I searched all over the place but no answers sadly.