Feature lists are nice, but they can get lengthy and they don't always tell the story in a way that's relevant to you as the developer/designer in the trenches, trying to get real work done for real clients. You hear plenty about theoretical benefits of CSS animations or some whiz-bang library that claims to solve various challenges, but then you discover things fall apart in all but the most modern browsers or the API is exceedingly cumbersome or there are frustrating "gotchas". You need things

Some practical, real-world reasons GSAP has become an industry standard for animation on the web.